// -*- C++ -*-
//===--------------------------- string -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STRING
#define _LIBCPP_STRING
/*
string synopsis
namespace std
{
template <class stateT>
class fpos
{
private:
stateT st;
public:
fpos(streamoff = streamoff());
operator streamoff() const;
stateT state() const;
void state(stateT);
fpos& operator+=(streamoff);
fpos operator+ (streamoff) const;
fpos& operator-=(streamoff);
fpos operator- (streamoff) const;
};
template <class stateT> streamoff operator-(const fpos<stateT>& x, const fpos<stateT>& y);
template <class stateT> bool operator==(const fpos<stateT>& x, const fpos<stateT>& y);
template <class stateT> bool operator!=(const fpos<stateT>& x, const fpos<stateT>& y);
template <class charT>
struct char_traits
{
typedef charT char_type;
typedef ... int_type;
typedef streamoff off_type;
typedef streampos pos_type;
typedef mbstate_t state_type;
static void assign(char_type& c1, const char_type& c2) noexcept;
static constexpr bool eq(char_type c1, char_type c2) noexcept;
static constexpr bool lt(char_type c1, char_type c2) noexcept;
static int compare(const char_type* s1, const char_type* s2, size_t n);
static size_t length(const char_type* s);
static const char_type* find(const char_type* s, size_t n, const char_type& a);
static char_type* move(char_type* s1, const char_type* s2, size_t n);
static char_type* copy(char_type* s1, const char_type* s2, size_t n);
static char_type* assign(char_type* s, size_t n, char_type a);
static constexpr int_type not_eof(int_type c) noexcept;
static constexpr char_type to_char_type(int_type c) noexcept;
static constexpr int_type to_int_type(char_type c) noexcept;
static constexpr bool eq_int_type(int_type c1, int_type c2) noexcept;
static constexpr int_type eof() noexcept;
};
template <> struct char_traits<char>;
template <> struct char_traits<wchar_t>;
template<class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_string
{
public:
// types:
typedef traits traits_type;
typedef typename traits_type::char_type value_type;
typedef Allocator allocator_type;
typedef typename allocator_type::size_type size_type;
typedef typename allocator_type::difference_type difference_type;
typedef typename allocator_type::reference reference;
typedef typename allocator_type::const_reference const_reference;
typedef typename allocator_type::pointer pointer;
typedef typename allocator_type::const_pointer const_pointer;
typedef implementation-defined iterator;
typedef implementation-defined const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
static const size_type npos = -1;
basic_string()
noexcept(is_nothrow_default_constructible<allocator_type>::value);
explicit basic_string(const allocator_type& a);
basic_string(const basic_string& str);
basic_string(basic_string&& str)
noexcept(is_nothrow_move_constructible<allocator_type>::value);
basic_string(const basic_string& str, size_type pos,
const allocator_type& a = allocator_type());
basic_string(const basic_string& str, size_type pos, size_type n,
const Allocator& a = Allocator());
template<class T>
basic_string(const T& t, size_type pos, size_type n, const Allocator& a = Allocator()); // C++17
template <class T>
explicit basic_string(const T& t, const Allocator& a = Allocator()); // C++17
basic_string(const value_type* s, const allocator_type& a = allocator_type());
basic_string(const value_type* s, size_type n, const allocator_type& a = allocator_type());
basic_string(size_type n, value_type c, const allocator_type& a = allocator_type());
template<class InputIterator>
basic_string(InputIterator begin, InputIterator end,
const allocator_type& a = allocator_type());
basic_string(initializer_list<value_type>, const Allocator& = Allocator());
basic_string(const basic_string&, const Allocator&);
basic_string(basic_string&&, const Allocator&);
~basic_string();
operator basic_string_view<charT, traits>() const noexcept;
basic_string& operator=(const basic_string& str);
template <class T>
basic_string& operator=(const T& t); // C++17
basic_string& operator=(basic_string&& str)
noexcept(
allocator_type::propagate_on_container_move_assignment::value ||
allocator_type::is_always_equal::value ); // C++17
basic_string& operator=(const value_type* s);
basic_string& operator=(value_type c);
basic_string& operator=(initializer_list<value_type>);
iterator begin() noexcept;
const_iterator begin() const noexcept;
iterator end() noexcept;
const_iterator end() const noexcept;
reverse_iterator rbegin() noexcept;
const_reverse_iterator rbegin() const noexcept;
reverse_iterator rend() noexcept;
const_reverse_iterator rend() const noexcept;
const_iterator cbegin() const noexcept;
const_iterator cend() const noexcept;
const_reverse_iterator crbegin() const noexcept;
const_reverse_iterator crend() const noexcept;
size_type size() const noexcept;
size_type length() const noexcept;
size_type max_size() const noexcept;
size_type capacity() const noexcept;
void resize(size_type n, value_type c);
void resize(size_type n);
void reserve(size_type res_arg = 0);
void shrink_to_fit();
void clear() noexcept;
bool empty() const noexcept;
const_reference operator[](size_type pos) const;
reference operator[](size_type pos);
const_reference at(size_type n) const;
reference at(size_type n);
basic_string& operator+=(const basic_string& str);
template <class T>
basic_string& operator+=(const T& t); // C++17
basic_string& operator+=(const value_type* s);
basic_string& operator+=(value_type c);
basic_string& operator+=(initializer_list<value_type>);
basic_string& append(const basic_string& str);
template <class T>
basic_string& append(const T& t); // C++17
basic_string& append(const basic_string& str, size_type pos, size_type n=npos); //C++14
template <class T>
basic_string& append(const T& t, size_type pos, size_type n=npos); // C++17
basic_string& append(const value_type* s, size_type n);
basic_string& append(const value_type* s);
basic_string& append(size_type n, value_type c);
template<class InputIterator>
basic_string& append(InputIterator first, InputIterator last);
basic_string& append(initializer_list<value_type>);
void push_back(value_type c);
void pop_back();
reference front();
const_reference front() const;
reference back();
const_reference back() const;
basic_string& assign(const basic_string& str);
template <class T>
basic_string& assign(const T& t); // C++17
basic_string& assign(basic_string&& str);
basic_string& assign(const basic_string& str, size_type pos, size_type n=npos); // C++14
template <class T>
basic_string& assign(const T& t, size_type pos, size_type n=npos); // C++17
basic_string& assign(const value_type* s, size_type n);
basic_string& assign(const value_type* s);
basic_string& assign(size_type n, value_type c);
template<class InputIterator>
basic_string& assign(InputIterator first, InputIterator last);
basic_string& assign(initializer_list<value_type>);
basic_string& insert(size_type pos1, const basic_string& str);
template <class T>
basic_string& insert(size_type pos1, const T& t);
basic_string& insert(size_type pos1, const basic_string& str,
size_type pos2, size_type n);
template <class T>
basic_string& insert(size_type pos1, const T& t, size_type pos2, size_type n); // C++17
basic_string& insert(size_type pos, const value_type* s, size_type n=npos); //C++14
basic_string& insert(size_type pos, const value_type* s);
basic_string& insert(size_type pos, size_type n, value_type c);
iterator insert(const_iterator p, value_type c);
iterator insert(const_iterator p, size_type n, value_type c);
template<class InputIterator>
iterator insert(const_iterator p, InputIterator first, InputIterator last);
iterator insert(const_iterator p, initializer_list<value_type>);
basic_string& erase(size_type pos = 0, size_type n = npos);
iterator erase(const_iterator position);
iterator erase(const_iterator first, const_iterator last);
basic_string& replace(size_type pos1, size_type n1, const basic_string& str);
template <class T>
basic_string& replace(size_type pos1, size_type n1, const T& t); // C++17
basic_string& replace(size_type pos1, size_type n1, const basic_string& str,
size_type pos2, size_type n2=npos); // C++14
template <class T>
basic_string& replace(size_type pos1, size_type n1, const T& t,
size_type pos2, size_type n); // C++17
basic_string& replace(size_type pos, size_type n1, const value_type* s, size_type n2);
basic_string& replace(size_type pos, size_type n1, const value_type* s);
basic_string& replace(size_type pos, size_type n1, size_type n2, value_type c);
basic_string& replace(const_iterator i1, const_iterator i2, const basic_string& str);
template <class T>
basic_string& replace(const_iterator i1, const_iterator i2, const T& t); // C++17
basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s, size_type n);
basic_string& replace(const_iterator i1, const_iterator i2, const value_type* s);
basic_string& replace(const_iterator i1, const_iterator i2, size_type n, value_type c);
template<class InputIterator>
basic_string& replace(const_iterator i1, const_iterator i2, InputIterator j1, InputIterator j2);
basic_string& replace(const_iterator i1, const_iterator i2, initializer_list<value_type>);
size_type copy(value_type* s, size_type n, size_type pos = 0) const;
basic_string substr(size_type pos = 0, size_type n = npos) const;
void swap(basic_string& str)
noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value ||
allocator_traits<allocator_type>::is_always_equal::value); // C++17
const value_type* c_str() const noexcept;
const value_type* data() const noexcept;
value_type* data() noexcept; // C++17
allocator_type get_allocator() const noexcept;
size_type find(const basic_string& str, size_type pos = 0) const noexcept;
template <class T>
size_type find(const T& t, size_type pos = 0) const; // C++17
size_type find(const value_type* s, size_type pos, size_type n) const noexcept;
size_type find(const value_type* s, size_type pos = 0) const noexcept;
size_type find(value_type c, size_type pos = 0) const noexcept;
size_type rfind(const basic_string& str, size_type pos = npos) const noexcept;
template <class T>
size_type rfind(const T& t, size_type pos = npos) const; // C++17
size_type rfind(const value_type* s, size_type pos, size_type n) const noexcept;
size_type rfind(const value_type* s, size_type pos = npos) const noexcept;
size_type rfind(value_type c, size_type pos = npos) const noexcept;
size_type find_first_of(const basic_string& str, size_type pos = 0) const noexcept;
template <class T>
size_type find_first_of(const T& t, size_type pos = 0) const; // C++17
size_type find_first_of(const value_type* s, size_type pos, size_type n) const noexcept;
size_type find_first_of(const value_type* s, size_type pos = 0) const noexcept;
size_type find_first_of(value_type c, size_type pos = 0) const noexcept;
size_type find_last_of(const basic_string& str, size_type pos = npos) const noexcept;
template <class T>
size_type find_last_of(const T& t, size_type pos = npos) const noexcept; // C++17
size_type find_last_of(const value_type* s, size_type pos, size_type n) const noexcept;
size_type find_last_of(const value_type* s, size_type pos = npos) const noexcept;
size_type find_last_of(value_type c, size_type pos = npos) const noexcept;
size_type find_first_not_of(const basic_string& str, size_type pos = 0) const noexcept;
template <class T>
size_type find_first_not_of(const T& t, size_type pos = 0) const; // C++17
size_type find_first_not_of(const value_type* s, size_type pos, size_type n) const noexcept;
size_type find_first_not_of(const value_type* s, size_type pos = 0) const noexcept;
size_type find_first_not_of(value_type c, size_type pos = 0) const noexcept;
size_type find_last_not_of(const basic_string& str, size_type pos = npos) const noexcept;
template <class T>
size_type find_last_not_of(const T& t, size_type pos = npos) const; // C++17
size_type find_last_not_of(const value_type* s, size_type pos, size_type n) const noexcept;
size_type find_last_not_of(const value_type* s, size_type pos = npos) const noexcept;
size_type find_last_not_of(value_type c, size_type pos = npos) const noexcept;
int compare(const basic_string& str) const noexcept;
template <class T>
int compare(const T& t) const noexcept; // C++17
int compare(size_type pos1, size_type n1, const basic_string& str) const;
template <class T>
int compare(size_type pos1, size_type n1, const T& t) const; // C++17
int compare(size_type pos1, size_type n1, const basic_string& str,
size_type pos2, size_type n2=npos) const; // C++14
template <class T>
int compare(size_type pos1, size_type n1, const T& t,
size_type pos2, size_type n2=npos) const; // C++17
int compare(const value_type* s) const noexcept;
int compare(size_type pos1, size_type n1, const value_type* s) const;
int compare(size_type pos1, size_type n1, const value_type* s, size_type n2) const;
bool starts_with(basic_string_view<charT, traits> sv) const noexcept; // C++2a
bool starts_with(charT c) const noexcept; // C++2a
bool starts_with(const charT* s) const; // C++2a
bool ends_with(basic_string_view<charT, traits> sv) const noexcept; // C++2a
bool ends_with(charT c) const noexcept; // C++2a
bool ends_with(const charT* s) const; // C++2a
bool __invariants() const;
};
template<class InputIterator,
class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
basic_string(InputIterator, InputIterator, Allocator = Allocator())
-> basic_string<typename iterator_traits<InputIterator>::value_type,
char_traits<typename iterator_traits<InputIterator>::value_type>,
Allocator>; // C++17
template<class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator>
operator+(const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs);
template<class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator>
operator+(const charT* lhs , const basic_string<charT,traits,Allocator>&rhs);
template<class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator>
operator+(charT lhs, const basic_string<charT,traits,Allocator>& rhs);
template<class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator>
operator+(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs);
template<class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator>
operator+(const basic_string<charT, traits, Allocator>& lhs, charT rhs);
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator==(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT,traits,Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator!=(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator!=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator!=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator< (const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator< (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator< (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator> (const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator> (const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator> (const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator<=(const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator<=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator<=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator>=(const basic_string<charT, traits, Allocator>& lhs,
const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator>=(const basic_string<charT, traits, Allocator>& lhs, const charT* rhs) noexcept;
template<class charT, class traits, class Allocator>
bool operator>=(const charT* lhs, const basic_string<charT, traits, Allocator>& rhs) noexcept;
template<class charT, class traits, class Allocator>
void swap(basic_string<charT, traits, Allocator>& lhs,
basic_string<charT, traits, Allocator>& rhs)
noexcept(noexcept(lhs.swap(rhs)));
template<class charT, class traits, class Allocator>
basic_istream<charT, traits>&
operator>>(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str);
template<class charT, class traits, class Allocator>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, const basic_string<charT, traits, Allocator>& str);
template<class charT, class traits, class Allocator>
basic_istream<charT, traits>&
getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str,
charT delim);
template<class charT, class traits, class Allocator>
basic_istream<charT, traits>&
getline(basic_istream<charT, traits>& is, basic_string<charT, traits, Allocator>& str);
template<class charT, class traits, class Allocator, class U>
void erase(basic_string<charT, traits, Allocator>& c, const U& value); // C++20
template<class charT, class traits, class Allocator, class Predicate>
void erase_if(basic_string<charT, traits, Allocator>& c, Predicate pred); // C++20
typedef basic_string<char> string;
typedef basic_string<wchar_t> wstring;
typedef basic_string<char16_t> u16string;
typedef basic_string<char32_t> u32string;
int stoi (const string& str, size_t* idx = 0, int base = 10);
long stol (const string& str, size_t* idx = 0, int base = 10);
unsigned long stoul (const string& str, size_t* idx = 0, int base = 10);
long long stoll (const string& str, size_t* idx = 0, int base = 10);
unsigned long long stoull(const string& str, size_t* idx = 0, int base = 10);
float stof (const string& str, size_t* idx = 0);
double stod (const string& str, size_t* idx = 0);
long double stold(const string& str, size_t* idx = 0);
string to_string(int val);
string to_string(unsigned val);
string to_string(long val);
string to_string(unsigned long val);
string to_string(long long val);
string to_string(unsigned long long val);
string to_string(float val);
string to_string(double val);
string to_string(long double val);
int stoi (const wstring& str, size_t* idx = 0, int base = 10);
long stol (const wstring& str, size_t* idx = 0, int base = 10);
unsigned long stoul (const wstring& str, size_t* idx = 0, int base = 10);
long long stoll (const wstring& str, size_t* idx = 0, int base = 10);
unsigned long long stoull(const wstring& str, size_t* idx = 0, int base = 10);
float stof (const wstring& str, size_t* idx = 0);
double stod (const wstring& str, size_t* idx = 0);
long double stold(const wstring& str, size_t* idx = 0);
wstring to_wstring(int val);
wstring to_wstring(unsigned val);
wstring to_wstring(long val);
wstring to_wstring(unsigned long val);
wstring to_wstring(long long val);
wstring to_wstring(unsigned long long val);
wstring to_wstring(float val);
wstring to_wstring(double val);
wstring to_wstring(long double val);
template <> struct hash<string>;
template <> struct hash<u16string>;
template <> struct hash<u32string>;
template <> struct hash<wstring>;
basic_string<char> operator "" s( const char *str, size_t len ); // C++14
basic_string<wchar_t> operator "" s( const wchar_t *str, size_t len ); // C++14
basic_string<char16_t> operator "" s( const char16_t *str, size_t len ); // C++14
basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++14
} // std
*/
#include <__config>
#include <string_view>
#include <iosfwd>
#include <cstring>
#include <cstdio> // For EOF.
#include <cwchar>
#include <algorithm>
#include <iterator>
#include <utility>
#include <memory>
#include <stdexcept>
#include <type_traits>
#include <initializer_list>
#include <__functional_base>
#include <version>
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
#include <cstdint>
#endif
#include <__debug>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
// fpos
template <class _StateT>
class _LIBCPP_TEMPLATE_VIS fpos
{
private:
_StateT __st_;
streamoff __off_;
public:
_LIBCPP_INLINE_VISIBILITY fpos(streamoff __off = streamoff()) : __st_(), __off_(__off) {}
_LIBCPP_INLINE_VISIBILITY operator streamoff() const {return __off_;}
_LIBCPP_INLINE_VISIBILITY _StateT state() const {return __st_;}
_LIBCPP_INLINE_VISIBILITY void state(_StateT __st) {__st_ = __st;}
_LIBCPP_INLINE_VISIBILITY fpos& operator+=(streamoff __off) {__off_ += __off; return *this;}
_LIBCPP_INLINE_VISIBILITY fpos operator+ (streamoff __off) const {fpos __t(*this); __t += __off; return __t;}
_LIBCPP_INLINE_VISIBILITY fpos& operator-=(streamoff __off) {__off_ -= __off; return *this;}
_LIBCPP_INLINE_VISIBILITY fpos operator- (streamoff __off) const {fpos __t(*this); __t -= __off; return __t;}
};
template <class _StateT>
inline _LIBCPP_INLINE_VISIBILITY
streamoff operator-(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
{return streamoff(__x) - streamoff(__y);}
template <class _StateT>
inline _LIBCPP_INLINE_VISIBILITY
bool operator==(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
{return streamoff(__x) == streamoff(__y);}
template <class _StateT>
inline _LIBCPP_INLINE_VISIBILITY
bool operator!=(const fpos<_StateT>& __x, const fpos<_StateT>& __y)
{return streamoff(__x) != streamoff(__y);}
// basic_string
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __x,
const basic_string<_CharT, _Traits, _Allocator>& __y);
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const _CharT* __x, const basic_string<_CharT,_Traits,_Allocator>& __y);
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(_CharT __x, const basic_string<_CharT,_Traits,_Allocator>& __y);
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, const _CharT* __y);
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, _CharT __y);
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS string operator+<char, char_traits<char>, allocator<char> >(char const*, string const&))
template <bool>
class _LIBCPP_TEMPLATE_VIS __basic_string_common
{
protected:
_LIBCPP_NORETURN void __throw_length_error() const;
_LIBCPP_NORETURN void __throw_out_of_range() const;
};
template <bool __b>
void
__basic_string_common<__b>::__throw_length_error() const
{
_VSTD::__throw_length_error("basic_string");
}
template <bool __b>
void
__basic_string_common<__b>::__throw_out_of_range() const
{
_VSTD::__throw_out_of_range("basic_string");
}
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __basic_string_common<true>)
#ifdef _LIBCPP_NO_EXCEPTIONS
template <class _Iter>
struct __libcpp_string_gets_noexcept_iterator_impl : public true_type {};
#elif defined(_LIBCPP_HAS_NO_NOEXCEPT)
template <class _Iter>
struct __libcpp_string_gets_noexcept_iterator_impl : public false_type {};
#else
template <class _Iter, bool = __is_forward_iterator<_Iter>::value>
struct __libcpp_string_gets_noexcept_iterator_impl : public _LIBCPP_BOOL_CONSTANT((
noexcept(++(declval<_Iter&>())) &&
is_nothrow_assignable<_Iter&, _Iter>::value &&
noexcept(declval<_Iter>() == declval<_Iter>()) &&
noexcept(*declval<_Iter>())
)) {};
template <class _Iter>
struct __libcpp_string_gets_noexcept_iterator_impl<_Iter, false> : public false_type {};
#endif
template <class _Iter>
struct __libcpp_string_gets_noexcept_iterator
: public _LIBCPP_BOOL_CONSTANT(__libcpp_is_trivial_iterator<_Iter>::value || __libcpp_string_gets_noexcept_iterator_impl<_Iter>::value) {};
template <class _CharT, class _Traits, class _Tp>
struct __can_be_converted_to_string_view : public _LIBCPP_BOOL_CONSTANT(
( is_convertible<const _Tp&, basic_string_view<_CharT, _Traits> >::value &&
!is_convertible<const _Tp&, const _CharT*>::value)) {};
#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
template <class _CharT, size_t = sizeof(_CharT)>
struct __padding
{
unsigned char __xx[sizeof(_CharT)-1];
};
template <class _CharT>
struct __padding<_CharT, 1>
{
};
#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
template<class _CharT, class _Traits, class _Allocator>
class _LIBCPP_TEMPLATE_VIS basic_string
: private __basic_string_common<true>
{
public:
typedef basic_string __self;
typedef basic_string_view<_CharT, _Traits> __self_view;
typedef _Traits traits_type;
typedef _CharT value_type;
typedef _Allocator allocator_type;
typedef allocator_traits<allocator_type> __alloc_traits;
typedef typename __alloc_traits::size_type size_type;
typedef typename __alloc_traits::difference_type difference_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename __alloc_traits::pointer pointer;
typedef typename __alloc_traits::const_pointer const_pointer;
static_assert((!is_array<value_type>::value), "Character type of basic_string must not be an array");
static_assert(( is_standard_layout<value_type>::value), "Character type of basic_string must be standard-layout");
static_assert(( is_trivial<value_type>::value), "Character type of basic_string must be trivial");
static_assert(( is_same<_CharT, typename traits_type::char_type>::value),
"traits_type::char_type must be the same type as CharT");
static_assert(( is_same<typename allocator_type::value_type, value_type>::value),
"Allocator::value_type must be same type as value_type");
#if defined(_LIBCPP_RAW_ITERATORS)
typedef pointer iterator;
typedef const_pointer const_iterator;
#else // defined(_LIBCPP_RAW_ITERATORS)
typedef __wrap_iter<pointer> iterator;
typedef __wrap_iter<const_pointer> const_iterator;
#endif // defined(_LIBCPP_RAW_ITERATORS)
typedef _VSTD::reverse_iterator<iterator> reverse_iterator;
typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator;
private:
#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
struct __long
{
pointer __data_;
size_type __size_;
size_type __cap_;
};
#ifdef _LIBCPP_BIG_ENDIAN
static const size_type __short_mask = 0x01;
static const size_type __long_mask = 0x1ul;
#else // _LIBCPP_BIG_ENDIAN
static const size_type __short_mask = 0x80;
static const size_type __long_mask = ~(size_type(~0) >> 1);
#endif // _LIBCPP_BIG_ENDIAN
enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ?
(sizeof(__long) - 1)/sizeof(value_type) : 2};
struct __short
{
value_type __data_[__min_cap];
struct
: __padding<value_type>
{
unsigned char __size_;
};
};
#else
struct __long
{
size_type __cap_;
size_type __size_;
pointer __data_;
};
#ifdef _LIBCPP_BIG_ENDIAN
static const size_type __short_mask = 0x80;
static const size_type __long_mask = ~(size_type(~0) >> 1);
#else // _LIBCPP_BIG_ENDIAN
static const size_type __short_mask = 0x01;
static const size_type __long_mask = 0x1ul;
#endif // _LIBCPP_BIG_ENDIAN
enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ?
(sizeof(__long) - 1)/sizeof(value_type) : 2};
struct __short
{
union
{
unsigned char __size_;
value_type __lx;
};
value_type __data_[__min_cap];
};
#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
union __ulx{__long __lx; __short __lxx;};
enum {__n_words = sizeof(__ulx) / sizeof(size_type)};
struct __raw
{
size_type __words[__n_words];
};
struct __rep
{
union
{
__long __l;
__short __s;
__raw __r;
};
};
__compressed_pair<__rep, allocator_type> __r_;
public:
static const size_type npos = -1;
_LIBCPP_INLINE_VISIBILITY basic_string()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
_LIBCPP_INLINE_VISIBILITY explicit basic_string(const allocator_type& __a)
#if _LIBCPP_STD_VER <= 14
_NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value);
#else
_NOEXCEPT;
#endif
basic_string(const basic_string& __str);
basic_string(const basic_string& __str, const allocator_type& __a);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string(basic_string&& __str)
#if _LIBCPP_STD_VER <= 14
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
#else
_NOEXCEPT;
#endif
_LIBCPP_INLINE_VISIBILITY
basic_string(basic_string&& __str, const allocator_type& __a);
#endif // _LIBCPP_CXX03_LANG
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class = typename enable_if<__is_allocator<_Allocator>::value, nullptr_t>::type>
#endif
_LIBCPP_INLINE_VISIBILITY
basic_string(const _CharT* __s) {
_LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr");
__init(__s, traits_type::length(__s));
# if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
# endif
}
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class = typename enable_if<__is_allocator<_Allocator>::value, nullptr_t>::type>
#endif
_LIBCPP_INLINE_VISIBILITY
basic_string(const _CharT* __s, const _Allocator& __a);
_LIBCPP_INLINE_VISIBILITY
basic_string(const _CharT* __s, size_type __n);
_LIBCPP_INLINE_VISIBILITY
basic_string(const _CharT* __s, size_type __n, const _Allocator& __a);
_LIBCPP_INLINE_VISIBILITY
basic_string(size_type __n, _CharT __c);
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class = typename enable_if<__is_allocator<_Allocator>::value, nullptr_t>::type>
#endif
_LIBCPP_INLINE_VISIBILITY
basic_string(size_type __n, _CharT __c, const _Allocator& __a);
basic_string(const basic_string& __str, size_type __pos, size_type __n,
const _Allocator& __a = _Allocator());
_LIBCPP_INLINE_VISIBILITY
basic_string(const basic_string& __str, size_type __pos,
const _Allocator& __a = _Allocator());
template<class _Tp, class = typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
basic_string(const _Tp& __t, size_type __pos, size_type __n,
const allocator_type& __a = allocator_type());
template<class _Tp, class = typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
explicit basic_string(const _Tp& __t);
template<class _Tp, class = typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
explicit basic_string(const _Tp& __t, const allocator_type& __a);
template<class _InputIterator>
_LIBCPP_INLINE_VISIBILITY
basic_string(_InputIterator __first, _InputIterator __last);
template<class _InputIterator>
_LIBCPP_INLINE_VISIBILITY
basic_string(_InputIterator __first, _InputIterator __last, const allocator_type& __a);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string(initializer_list<_CharT> __il);
_LIBCPP_INLINE_VISIBILITY
basic_string(initializer_list<_CharT> __il, const _Allocator& __a);
#endif // _LIBCPP_CXX03_LANG
inline ~basic_string();
_LIBCPP_INLINE_VISIBILITY
operator __self_view() const _NOEXCEPT { return __self_view(data(), size()); }
basic_string& operator=(const basic_string& __str);
template <class _Tp, class = typename enable_if<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, void>::type>
basic_string& operator=(const _Tp& __t)
{__self_view __sv = __t; return assign(__sv);}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& operator=(basic_string&& __str)
_NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value));
_LIBCPP_INLINE_VISIBILITY
basic_string& operator=(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());}
#endif
_LIBCPP_INLINE_VISIBILITY basic_string& operator=(const value_type* __s) {return assign(__s);}
basic_string& operator=(value_type __c);
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_INLINE_VISIBILITY
iterator begin() _NOEXCEPT
{return iterator(this, __get_pointer());}
_LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT
{return const_iterator(this, __get_pointer());}
_LIBCPP_INLINE_VISIBILITY
iterator end() _NOEXCEPT
{return iterator(this, __get_pointer() + size());}
_LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT
{return const_iterator(this, __get_pointer() + size());}
#else
_LIBCPP_INLINE_VISIBILITY
iterator begin() _NOEXCEPT
{return iterator(__get_pointer());}
_LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT
{return const_iterator(__get_pointer());}
_LIBCPP_INLINE_VISIBILITY
iterator end() _NOEXCEPT
{return iterator(__get_pointer() + size());}
_LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT
{return const_iterator(__get_pointer() + size());}
#endif // _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rbegin() _NOEXCEPT
{return reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rbegin() const _NOEXCEPT
{return const_reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rend() _NOEXCEPT
{return reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rend() const _NOEXCEPT
{return const_reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_iterator cbegin() const _NOEXCEPT
{return begin();}
_LIBCPP_INLINE_VISIBILITY
const_iterator cend() const _NOEXCEPT
{return end();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crbegin() const _NOEXCEPT
{return rbegin();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crend() const _NOEXCEPT
{return rend();}
_LIBCPP_INLINE_VISIBILITY size_type size() const _NOEXCEPT
{return __is_long() ? __get_long_size() : __get_short_size();}
_LIBCPP_INLINE_VISIBILITY size_type length() const _NOEXCEPT {return size();}
_LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY size_type capacity() const _NOEXCEPT
{return (__is_long() ? __get_long_cap()
: static_cast<size_type>(__min_cap)) - 1;}
void resize(size_type __n, value_type __c);
_LIBCPP_INLINE_VISIBILITY void resize(size_type __n) {resize(__n, value_type());}
void reserve(size_type __res_arg);
_LIBCPP_INLINE_VISIBILITY void __resize_default_init(size_type __n);
_LIBCPP_INLINE_VISIBILITY
void reserve() _NOEXCEPT {reserve(0);}
_LIBCPP_INLINE_VISIBILITY
void shrink_to_fit() _NOEXCEPT {reserve();}
_LIBCPP_INLINE_VISIBILITY
void clear() _NOEXCEPT;
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
bool empty() const _NOEXCEPT {return size() == 0;}
_LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __pos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY reference operator[](size_type __pos) _NOEXCEPT;
const_reference at(size_type __n) const;
reference at(size_type __n);
_LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const basic_string& __str) {return append(__str);}
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
operator+=(const _Tp& __t) {__self_view __sv = __t; return append(__sv);}
_LIBCPP_INLINE_VISIBILITY basic_string& operator+=(const value_type* __s) {return append(__s);}
_LIBCPP_INLINE_VISIBILITY basic_string& operator+=(value_type __c) {push_back(__c); return *this;}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY basic_string& operator+=(initializer_list<value_type> __il) {return append(__il);}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& append(const basic_string& __str);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
append(const _Tp& __t) { __self_view __sv = __t; return append(__sv.data(), __sv.size()); }
basic_string& append(const basic_string& __str, size_type __pos, size_type __n=npos);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
append(const _Tp& __t, size_type __pos, size_type __n=npos);
basic_string& append(const value_type* __s, size_type __n);
basic_string& append(const value_type* __s);
basic_string& append(size_type __n, value_type __c);
_LIBCPP_INLINE_VISIBILITY
void __append_default_init(size_type __n);
template <class _ForwardIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
basic_string& __append_forward_unsafe(_ForwardIterator, _ForwardIterator);
template<class _InputIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value
|| !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value,
basic_string&
>::type
_LIBCPP_INLINE_VISIBILITY
append(_InputIterator __first, _InputIterator __last) {
const basic_string __temp (__first, __last, __alloc());
append(__temp.data(), __temp.size());
return *this;
}
template<class _ForwardIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value
&& __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value,
basic_string&
>::type
_LIBCPP_INLINE_VISIBILITY
append(_ForwardIterator __first, _ForwardIterator __last) {
return __append_forward_unsafe(__first, __last);
}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& append(initializer_list<value_type> __il) {return append(__il.begin(), __il.size());}
#endif // _LIBCPP_CXX03_LANG
void push_back(value_type __c);
_LIBCPP_INLINE_VISIBILITY
void pop_back();
_LIBCPP_INLINE_VISIBILITY reference front();
_LIBCPP_INLINE_VISIBILITY const_reference front() const;
_LIBCPP_INLINE_VISIBILITY reference back();
_LIBCPP_INLINE_VISIBILITY const_reference back() const;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
assign(const _Tp & __t) { __self_view __sv = __t; return assign(__sv.data(), __sv.size()); }
_LIBCPP_INLINE_VISIBILITY
basic_string& assign(const basic_string& __str) { return *this = __str; }
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& assign(basic_string&& __str)
_NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value))
{*this = _VSTD::move(__str); return *this;}
#endif
basic_string& assign(const basic_string& __str, size_type __pos, size_type __n=npos);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
assign(const _Tp & __t, size_type __pos, size_type __n=npos);
basic_string& assign(const value_type* __s, size_type __n);
basic_string& assign(const value_type* __s);
basic_string& assign(size_type __n, value_type __c);
template<class _InputIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value
|| !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value,
basic_string&
>::type
assign(_InputIterator __first, _InputIterator __last);
template<class _ForwardIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value
&& __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value,
basic_string&
>::type
assign(_ForwardIterator __first, _ForwardIterator __last);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& assign(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& insert(size_type __pos1, const basic_string& __str);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
insert(size_type __pos1, const _Tp& __t)
{ __self_view __sv = __t; return insert(__pos1, __sv.data(), __sv.size()); }
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
insert(size_type __pos1, const _Tp& __t, size_type __pos2, size_type __n=npos);
basic_string& insert(size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n=npos);
basic_string& insert(size_type __pos, const value_type* __s, size_type __n);
basic_string& insert(size_type __pos, const value_type* __s);
basic_string& insert(size_type __pos, size_type __n, value_type __c);
iterator insert(const_iterator __pos, value_type __c);
_LIBCPP_INLINE_VISIBILITY
iterator insert(const_iterator __pos, size_type __n, value_type __c);
template<class _InputIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value
|| !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value,
iterator
>::type
insert(const_iterator __pos, _InputIterator __first, _InputIterator __last);
template<class _ForwardIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value
&& __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value,
iterator
>::type
insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
iterator insert(const_iterator __pos, initializer_list<value_type> __il)
{return insert(__pos, __il.begin(), __il.end());}
#endif // _LIBCPP_CXX03_LANG
basic_string& erase(size_type __pos = 0, size_type __n = npos);
_LIBCPP_INLINE_VISIBILITY
iterator erase(const_iterator __pos);
_LIBCPP_INLINE_VISIBILITY
iterator erase(const_iterator __first, const_iterator __last);
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
replace(size_type __pos1, size_type __n1, const _Tp& __t) { __self_view __sv = __t; return replace(__pos1, __n1, __sv.data(), __sv.size()); }
basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
replace(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos);
basic_string& replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2);
basic_string& replace(size_type __pos, size_type __n1, const value_type* __s);
basic_string& replace(size_type __pos, size_type __n1, size_type __n2, value_type __c);
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(const_iterator __i1, const_iterator __i2, const basic_string& __str);
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string&
>::type
replace(const_iterator __i1, const_iterator __i2, const _Tp& __t) { __self_view __sv = __t; return replace(__i1 - begin(), __i2 - __i1, __sv); }
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n);
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s);
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c);
template<class _InputIterator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
basic_string&
>::type
replace(const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
basic_string& replace(const_iterator __i1, const_iterator __i2, initializer_list<value_type> __il)
{return replace(__i1, __i2, __il.begin(), __il.end());}
#endif // _LIBCPP_CXX03_LANG
size_type copy(value_type* __s, size_type __n, size_type __pos = 0) const;
_LIBCPP_INLINE_VISIBILITY
basic_string substr(size_type __pos = 0, size_type __n = npos) const;
_LIBCPP_INLINE_VISIBILITY
void swap(basic_string& __str)
#if _LIBCPP_STD_VER >= 14
_NOEXCEPT_DEBUG;
#else
_NOEXCEPT_DEBUG_(!__alloc_traits::propagate_on_container_swap::value ||
__is_nothrow_swappable<allocator_type>::value);
#endif
_LIBCPP_INLINE_VISIBILITY
const value_type* c_str() const _NOEXCEPT {return data();}
_LIBCPP_INLINE_VISIBILITY
const value_type* data() const _NOEXCEPT {return _VSTD::__to_raw_pointer(__get_pointer());}
#if _LIBCPP_STD_VER > 14 || defined(_LIBCPP_BUILDING_LIBRARY)
_LIBCPP_INLINE_VISIBILITY
value_type* data() _NOEXCEPT {return _VSTD::__to_raw_pointer(__get_pointer());}
#endif
_LIBCPP_INLINE_VISIBILITY
allocator_type get_allocator() const _NOEXCEPT {return __alloc();}
_LIBCPP_INLINE_VISIBILITY
size_type find(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
find(const _Tp& __t, size_type __pos = 0) const;
size_type find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
size_type find(value_type __c, size_type __pos = 0) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type rfind(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
rfind(const _Tp& __t, size_type __pos = npos) const;
size_type rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type rfind(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
size_type rfind(value_type __c, size_type __pos = npos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
find_first_of(const _Tp& __t, size_type __pos = 0) const;
size_type find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_of(value_type __c, size_type __pos = 0) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
find_last_of(const _Tp& __t, size_type __pos = npos) const;
size_type find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_of(value_type __c, size_type __pos = npos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
find_first_not_of(const _Tp &__t, size_type __pos = 0) const;
size_type find_first_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(value_type __c, size_type __pos = 0) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
size_type
>::type
find_last_not_of(const _Tp& __t, size_type __pos = npos) const;
size_type find_last_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(value_type __c, size_type __pos = npos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
int compare(const basic_string& __str) const _NOEXCEPT;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
compare(const _Tp &__t) const;
template <class _Tp>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
compare(size_type __pos1, size_type __n1, const _Tp& __t) const;
_LIBCPP_INLINE_VISIBILITY
int compare(size_type __pos1, size_type __n1, const basic_string& __str) const;
int compare(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos) const;
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
compare(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos) const;
int compare(const value_type* __s) const _NOEXCEPT;
int compare(size_type __pos1, size_type __n1, const value_type* __s) const;
int compare(size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const;
#if _LIBCPP_STD_VER > 17
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(__self_view __sv) const _NOEXCEPT
{ return __self_view(data(), size()).starts_with(__sv); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(value_type __c) const _NOEXCEPT
{ return !empty() && _Traits::eq(front(), __c); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(const value_type* __s) const _NOEXCEPT
{ return starts_with(__self_view(__s)); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(__self_view __sv) const _NOEXCEPT
{ return __self_view(data(), size()).ends_with( __sv); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(value_type __c) const _NOEXCEPT
{ return !empty() && _Traits::eq(back(), __c); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(const value_type* __s) const _NOEXCEPT
{ return ends_with(__self_view(__s)); }
#endif
_LIBCPP_INLINE_VISIBILITY bool __invariants() const;
_LIBCPP_INLINE_VISIBILITY void __clear_and_shrink() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool __is_long() const _NOEXCEPT
{return bool(__r_.first().__s.__size_ & __short_mask);}
#if _LIBCPP_DEBUG_LEVEL >= 2
bool __dereferenceable(const const_iterator* __i) const;
bool __decrementable(const const_iterator* __i) const;
bool __addable(const const_iterator* __i, ptrdiff_t __n) const;
bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const;
#endif // _LIBCPP_DEBUG_LEVEL >= 2
private:
_LIBCPP_INLINE_VISIBILITY
allocator_type& __alloc() _NOEXCEPT
{return __r_.second();}
_LIBCPP_INLINE_VISIBILITY
const allocator_type& __alloc() const _NOEXCEPT
{return __r_.second();}
#ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
_LIBCPP_INLINE_VISIBILITY
void __set_short_size(size_type __s) _NOEXCEPT
# ifdef _LIBCPP_BIG_ENDIAN
{__r_.first().__s.__size_ = (unsigned char)(__s << 1);}
# else
{__r_.first().__s.__size_ = (unsigned char)(__s);}
# endif
_LIBCPP_INLINE_VISIBILITY
size_type __get_short_size() const _NOEXCEPT
# ifdef _LIBCPP_BIG_ENDIAN
{return __r_.first().__s.__size_ >> 1;}
# else
{return __r_.first().__s.__size_;}
# endif
#else // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
_LIBCPP_INLINE_VISIBILITY
void __set_short_size(size_type __s) _NOEXCEPT
# ifdef _LIBCPP_BIG_ENDIAN
{__r_.first().__s.__size_ = (unsigned char)(__s);}
# else
{__r_.first().__s.__size_ = (unsigned char)(__s << 1);}
# endif
_LIBCPP_INLINE_VISIBILITY
size_type __get_short_size() const _NOEXCEPT
# ifdef _LIBCPP_BIG_ENDIAN
{return __r_.first().__s.__size_;}
# else
{return __r_.first().__s.__size_ >> 1;}
# endif
#endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
_LIBCPP_INLINE_VISIBILITY
void __set_long_size(size_type __s) _NOEXCEPT
{__r_.first().__l.__size_ = __s;}
_LIBCPP_INLINE_VISIBILITY
size_type __get_long_size() const _NOEXCEPT
{return __r_.first().__l.__size_;}
_LIBCPP_INLINE_VISIBILITY
void __set_size(size_type __s) _NOEXCEPT
{if (__is_long()) __set_long_size(__s); else __set_short_size(__s);}
_LIBCPP_INLINE_VISIBILITY
void __set_long_cap(size_type __s) _NOEXCEPT
{__r_.first().__l.__cap_ = __long_mask | __s;}
_LIBCPP_INLINE_VISIBILITY
size_type __get_long_cap() const _NOEXCEPT
{return __r_.first().__l.__cap_ & size_type(~__long_mask);}
_LIBCPP_INLINE_VISIBILITY
void __set_long_pointer(pointer __p) _NOEXCEPT
{__r_.first().__l.__data_ = __p;}
_LIBCPP_INLINE_VISIBILITY
pointer __get_long_pointer() _NOEXCEPT
{return __r_.first().__l.__data_;}
_LIBCPP_INLINE_VISIBILITY
const_pointer __get_long_pointer() const _NOEXCEPT
{return __r_.first().__l.__data_;}
_LIBCPP_INLINE_VISIBILITY
pointer __get_short_pointer() _NOEXCEPT
{return pointer_traits<pointer>::pointer_to(__r_.first().__s.__data_[0]);}
_LIBCPP_INLINE_VISIBILITY
const_pointer __get_short_pointer() const _NOEXCEPT
{return pointer_traits<const_pointer>::pointer_to(__r_.first().__s.__data_[0]);}
_LIBCPP_INLINE_VISIBILITY
pointer __get_pointer() _NOEXCEPT
{return __is_long() ? __get_long_pointer() : __get_short_pointer();}
_LIBCPP_INLINE_VISIBILITY
const_pointer __get_pointer() const _NOEXCEPT
{return __is_long() ? __get_long_pointer() : __get_short_pointer();}
_LIBCPP_INLINE_VISIBILITY
void __zero() _NOEXCEPT
{
size_type (&__a)[__n_words] = __r_.first().__r.__words;
for (unsigned __i = 0; __i < __n_words; ++__i)
__a[__i] = 0;
}
template <size_type __a> static
_LIBCPP_INLINE_VISIBILITY
size_type __align_it(size_type __s) _NOEXCEPT
{return (__s + (__a-1)) & ~(__a-1);}
enum {__alignment = 16};
static _LIBCPP_INLINE_VISIBILITY
size_type __recommend(size_type __s) _NOEXCEPT
{
if (__s < __min_cap) return static_cast<size_type>(__min_cap) - 1;
size_type __guess = __align_it<sizeof(value_type) < __alignment ?
__alignment/sizeof(value_type) : 1 > (__s+1) - 1;
if (__guess == __min_cap) ++__guess;
return __guess;
}
inline
void __init(const value_type* __s, size_type __sz, size_type __reserve);
inline
void __init(const value_type* __s, size_type __sz);
inline
void __init(size_type __n, value_type __c);
template <class _InputIterator>
inline
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value,
void
>::type
__init(_InputIterator __first, _InputIterator __last);
template <class _ForwardIterator>
inline
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value,
void
>::type
__init(_ForwardIterator __first, _ForwardIterator __last);
void __grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
size_type __n_copy, size_type __n_del, size_type __n_add = 0);
void __grow_by_and_replace(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
size_type __n_copy, size_type __n_del,
size_type __n_add, const value_type* __p_new_stuff);
_LIBCPP_INLINE_VISIBILITY
void __erase_to_end(size_type __pos);
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const basic_string& __str)
{__copy_assign_alloc(__str, integral_constant<bool,
__alloc_traits::propagate_on_container_copy_assignment::value>());}
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const basic_string& __str, true_type)
{
if (__alloc() == __str.__alloc())
__alloc() = __str.__alloc();
else
{
if (!__str.__is_long())
{
__clear_and_shrink();
__alloc() = __str.__alloc();
}
else
{
allocator_type __a = __str.__alloc();
pointer __p = __alloc_traits::allocate(__a, __str.__get_long_cap());
__clear_and_shrink();
__alloc() = _VSTD::move(__a);
__set_long_pointer(__p);
__set_long_cap(__str.__get_long_cap());
__set_long_size(__str.size());
}
}
}
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const basic_string&, false_type) _NOEXCEPT
{}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void __move_assign(basic_string& __str, false_type)
_NOEXCEPT_(__alloc_traits::is_always_equal::value);
_LIBCPP_INLINE_VISIBILITY
void __move_assign(basic_string& __str, true_type)
#if _LIBCPP_STD_VER > 14
_NOEXCEPT;
#else
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value);
#endif
#endif
_LIBCPP_INLINE_VISIBILITY
void
__move_assign_alloc(basic_string& __str)
_NOEXCEPT_(
!__alloc_traits::propagate_on_container_move_assignment::value ||
is_nothrow_move_assignable<allocator_type>::value)
{__move_assign_alloc(__str, integral_constant<bool,
__alloc_traits::propagate_on_container_move_assignment::value>());}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(basic_string& __c, true_type)
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
{
__alloc() = _VSTD::move(__c.__alloc());
}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(basic_string&, false_type)
_NOEXCEPT
{}
_LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators();
_LIBCPP_INLINE_VISIBILITY void __invalidate_iterators_past(size_type);
friend basic_string operator+<>(const basic_string&, const basic_string&);
friend basic_string operator+<>(const value_type*, const basic_string&);
friend basic_string operator+<>(value_type, const basic_string&);
friend basic_string operator+<>(const basic_string&, const value_type*);
friend basic_string operator+<>(const basic_string&, value_type);
};
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template<class _InputIterator,
class _CharT = typename iterator_traits<_InputIterator>::value_type,
class _Allocator = allocator<_CharT>,
class = typename enable_if<__is_input_iterator<_InputIterator>::value, void>::type,
class = typename enable_if<__is_allocator<_Allocator>::value, void>::type
>
basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator())
-> basic_string<_CharT, char_traits<_CharT>, _Allocator>;
template<class _CharT,
class _Traits,
class _Allocator = allocator<_CharT>,
class = typename enable_if<__is_allocator<_Allocator>::value, void>::type
>
explicit basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator())
-> basic_string<_CharT, _Traits, _Allocator>;
template<class _CharT,
class _Traits,
class _Allocator = allocator<_CharT>,
class = typename enable_if<__is_allocator<_Allocator>::value, void>::type,
class _Sz = typename allocator_traits<_Allocator>::size_type
>
basic_string(basic_string_view<_CharT, _Traits>, _Sz, _Sz, const _Allocator& = _Allocator())
-> basic_string<_CharT, _Traits, _Allocator>;
#endif
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators()
{
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__invalidate_all(this);
#endif // _LIBCPP_DEBUG_LEVEL >= 2
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__invalidate_iterators_past(size_type
#if _LIBCPP_DEBUG_LEVEL >= 2
__pos
#endif
)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
__c_node* __c = __get_db()->__find_c_and_lock(this);
if (__c)
{
const_pointer __new_last = __get_pointer() + __pos;
for (__i_node** __p = __c->end_; __p != __c->beg_; )
{
--__p;
const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_);
if (__i->base() > __new_last)
{
(*__p)->__c_ = nullptr;
if (--__c->end_ != __p)
memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*));
}
}
__get_db()->unlock();
}
#endif // _LIBCPP_DEBUG_LEVEL >= 2
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
__zero();
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a)
#if _LIBCPP_STD_VER <= 14
_NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value)
#else
_NOEXCEPT
#endif
: __r_(__second_tag(), __a)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
__zero();
}
template <class _CharT, class _Traits, class _Allocator>
void basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s,
size_type __sz,
size_type __reserve)
{
if (__reserve > max_size())
this->__throw_length_error();
pointer __p;
if (__reserve < __min_cap)
{
__set_short_size(__sz);
__p = __get_short_pointer();
}
else
{
size_type __cap = __recommend(__reserve);
__p = __alloc_traits::allocate(__alloc(), __cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
__set_long_size(__sz);
}
traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz);
traits_type::assign(__p[__sz], value_type());
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz)
{
if (__sz > max_size())
this->__throw_length_error();
pointer __p;
if (__sz < __min_cap)
{
__set_short_size(__sz);
__p = __get_short_pointer();
}
else
{
size_type __cap = __recommend(__sz);
__p = __alloc_traits::allocate(__alloc(), __cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
__set_long_size(__sz);
}
traits_type::copy(_VSTD::__to_raw_pointer(__p), __s, __sz);
traits_type::assign(__p[__sz], value_type());
}
template <class _CharT, class _Traits, class _Allocator>
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class>
#endif
basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, const _Allocator& __a)
: __r_(__second_tag(), __a)
{
_LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr");
__init(__s, traits_type::length(__s));
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n)
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr");
__init(__s, __n);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n, const _Allocator& __a)
: __r_(__second_tag(), __a)
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr");
__init(__s, __n);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str)
: __r_(__second_tag(), __alloc_traits::select_on_container_copy_construction(__str.__alloc()))
{
if (!__str.__is_long())
__r_.first().__r = __str.__r_.first().__r;
else
__init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>::basic_string(
const basic_string& __str, const allocator_type& __a)
: __r_(__second_tag(), __a)
{
if (!__str.__is_long())
__r_.first().__r = __str.__r_.first().__r;
else
__init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str)
#if _LIBCPP_STD_VER <= 14
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value)
#else
_NOEXCEPT
#endif
: __r_(_VSTD::move(__str.__r_))
{
__str.__zero();
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
if (__is_long())
__get_db()->swap(this, &__str);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, const allocator_type& __a)
: __r_(__second_tag(), __a)
{
if (__str.__is_long() && __a != __str.__alloc()) // copy, not move
__init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
else
{
__r_.first().__r = __str.__r_.first().__r;
__str.__zero();
}
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
if (__is_long())
__get_db()->swap(this, &__str);
#endif
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::__init(size_type __n, value_type __c)
{
if (__n > max_size())
this->__throw_length_error();
pointer __p;
if (__n < __min_cap)
{
__set_short_size(__n);
__p = __get_short_pointer();
}
else
{
size_type __cap = __recommend(__n);
__p = __alloc_traits::allocate(__alloc(), __cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
__set_long_size(__n);
}
traits_type::assign(_VSTD::__to_raw_pointer(__p), __n, __c);
traits_type::assign(__p[__n], value_type());
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c)
{
__init(__n, __c);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class>
#endif
basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c, const _Allocator& __a)
: __r_(__second_tag(), __a)
{
__init(__n, __c);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str,
size_type __pos, size_type __n,
const _Allocator& __a)
: __r_(__second_tag(), __a)
{
size_type __str_sz = __str.size();
if (__pos > __str_sz)
this->__throw_out_of_range();
__init(__str.data() + __pos, _VSTD::min(__n, __str_sz - __pos));
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, size_type __pos,
const _Allocator& __a)
: __r_(__second_tag(), __a)
{
size_type __str_sz = __str.size();
if (__pos > __str_sz)
this->__throw_out_of_range();
__init(__str.data() + __pos, __str_sz - __pos);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp, class>
basic_string<_CharT, _Traits, _Allocator>::basic_string(
const _Tp& __t, size_type __pos, size_type __n, const allocator_type& __a)
: __r_(__second_tag(), __a)
{
__self_view __sv0 = __t;
__self_view __sv = __sv0.substr(__pos, __n);
__init(__sv.data(), __sv.size());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp, class>
basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp & __t)
{
__self_view __sv = __t;
__init(__sv.data(), __sv.size());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp, class>
basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp & __t, const _Allocator& __a)
: __r_(__second_tag(), __a)
{
__self_view __sv = __t;
__init(__sv.data(), __sv.size());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
template <class _InputIterator>
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value,
void
>::type
basic_string<_CharT, _Traits, _Allocator>::__init(_InputIterator __first, _InputIterator __last)
{
__zero();
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
for (; __first != __last; ++__first)
push_back(*__first);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
if (__is_long())
__alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap());
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
template <class _CharT, class _Traits, class _Allocator>
template <class _ForwardIterator>
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value,
void
>::type
basic_string<_CharT, _Traits, _Allocator>::__init(_ForwardIterator __first, _ForwardIterator __last)
{
size_type __sz = static_cast<size_type>(_VSTD::distance(__first, __last));
if (__sz > max_size())
this->__throw_length_error();
pointer __p;
if (__sz < __min_cap)
{
__set_short_size(__sz);
__p = __get_short_pointer();
}
else
{
size_type __cap = __recommend(__sz);
__p = __alloc_traits::allocate(__alloc(), __cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
__set_long_size(__sz);
}
for (; __first != __last; ++__first, (void) ++__p)
traits_type::assign(*__p, *__first);
traits_type::assign(*__p, value_type());
}
template <class _CharT, class _Traits, class _Allocator>
template<class _InputIterator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last)
{
__init(__first, __last);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
template<class _InputIterator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last,
const allocator_type& __a)
: __r_(__second_tag(), __a)
{
__init(__first, __last);
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(
initializer_list<_CharT> __il)
{
__init(__il.begin(), __il.end());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>::basic_string(
initializer_list<_CharT> __il, const _Allocator& __a)
: __r_(__second_tag(), __a)
{
__init(__il.begin(), __il.end());
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
#endif
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>::~basic_string()
{
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__erase_c(this);
#endif
if (__is_long())
__alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap());
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::__grow_by_and_replace
(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
size_type __n_copy, size_type __n_del, size_type __n_add, const value_type* __p_new_stuff)
{
size_type __ms = max_size();
if (__delta_cap > __ms - __old_cap - 1)
this->__throw_length_error();
pointer __old_p = __get_pointer();
size_type __cap = __old_cap < __ms / 2 - __alignment ?
__recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) :
__ms - 1;
pointer __p = __alloc_traits::allocate(__alloc(), __cap+1);
__invalidate_all_iterators();
if (__n_copy != 0)
traits_type::copy(_VSTD::__to_raw_pointer(__p),
_VSTD::__to_raw_pointer(__old_p), __n_copy);
if (__n_add != 0)
traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy, __p_new_stuff, __n_add);
size_type __sec_cp_sz = __old_sz - __n_del - __n_copy;
if (__sec_cp_sz != 0)
traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add,
_VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del, __sec_cp_sz);
if (__old_cap+1 != __min_cap)
__alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
__old_sz = __n_copy + __n_add + __sec_cp_sz;
__set_long_size(__old_sz);
traits_type::assign(__p[__old_sz], value_type());
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::__grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz,
size_type __n_copy, size_type __n_del, size_type __n_add)
{
size_type __ms = max_size();
if (__delta_cap > __ms - __old_cap)
this->__throw_length_error();
pointer __old_p = __get_pointer();
size_type __cap = __old_cap < __ms / 2 - __alignment ?
__recommend(_VSTD::max(__old_cap + __delta_cap, 2 * __old_cap)) :
__ms - 1;
pointer __p = __alloc_traits::allocate(__alloc(), __cap+1);
__invalidate_all_iterators();
if (__n_copy != 0)
traits_type::copy(_VSTD::__to_raw_pointer(__p),
_VSTD::__to_raw_pointer(__old_p), __n_copy);
size_type __sec_cp_sz = __old_sz - __n_del - __n_copy;
if (__sec_cp_sz != 0)
traits_type::copy(_VSTD::__to_raw_pointer(__p) + __n_copy + __n_add,
_VSTD::__to_raw_pointer(__old_p) + __n_copy + __n_del,
__sec_cp_sz);
if (__old_cap+1 != __min_cap)
__alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1);
__set_long_pointer(__p);
__set_long_cap(__cap+1);
}
// assign
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s, size_type __n)
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign received nullptr");
size_type __cap = capacity();
if (__cap >= __n)
{
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
traits_type::move(__p, __s, __n);
traits_type::assign(__p[__n], value_type());
__set_size(__n);
__invalidate_iterators_past(__n);
}
else
{
size_type __sz = size();
__grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s);
}
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::assign(size_type __n, value_type __c)
{
size_type __cap = capacity();
if (__cap < __n)
{
size_type __sz = size();
__grow_by(__cap, __n - __cap, __sz, 0, __sz);
}
else
__invalidate_iterators_past(__n);
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
traits_type::assign(__p, __n, __c);
traits_type::assign(__p[__n], value_type());
__set_size(__n);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::operator=(value_type __c)
{
pointer __p;
if (__is_long())
{
__p = __get_long_pointer();
__set_long_size(1);
}
else
{
__p = __get_short_pointer();
__set_short_size(1);
}
traits_type::assign(*__p, __c);
traits_type::assign(*++__p, value_type());
__invalidate_iterators_past(1);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::operator=(const basic_string& __str)
{
if (this != &__str)
{
__copy_assign_alloc(__str);
assign(__str.data(), __str.size());
}
return *this;
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, false_type)
_NOEXCEPT_(__alloc_traits::is_always_equal::value)
{
if (__alloc() != __str.__alloc())
assign(__str);
else
__move_assign(__str, true_type());
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, true_type)
#if _LIBCPP_STD_VER > 14
_NOEXCEPT
#else
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
#endif
{
__clear_and_shrink();
__r_.first() = __str.__r_.first();
__move_assign_alloc(__str);
__str.__zero();
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::operator=(basic_string&& __str)
_NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value))
{
__move_assign(__str, integral_constant<bool,
__alloc_traits::propagate_on_container_move_assignment::value>());
return *this;
}
#endif
template <class _CharT, class _Traits, class _Allocator>
template<class _InputIterator>
typename enable_if
<
__is_exactly_input_iterator <_InputIterator>::value
|| !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::assign(_InputIterator __first, _InputIterator __last)
{
const basic_string __temp(__first, __last, __alloc());
assign(__temp.data(), __temp.size());
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
template<class _ForwardIterator>
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value
&& __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last)
{
size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
size_type __cap = capacity();
if (__cap < __n)
{
size_type __sz = size();
__grow_by(__cap, __n - __cap, __sz, 0, __sz);
}
else
__invalidate_iterators_past(__n);
pointer __p = __get_pointer();
for (; __first != __last; ++__first, ++__p)
traits_type::assign(*__p, *__first);
traits_type::assign(*__p, value_type());
__set_size(__n);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::assign(const basic_string& __str, size_type __pos, size_type __n)
{
size_type __sz = __str.size();
if (__pos > __sz)
this->__throw_out_of_range();
return assign(__str.data() + __pos, _VSTD::min(__n, __sz - __pos));
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::assign(const _Tp & __t, size_type __pos, size_type __n)
{
__self_view __sv = __t;
size_type __sz = __sv.size();
if (__pos > __sz)
this->__throw_out_of_range();
return assign(__sv.data() + __pos, _VSTD::min(__n, __sz - __pos));
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s)
{
_LIBCPP_ASSERT(__s != nullptr, "string::assign received nullptr");
return assign(__s, traits_type::length(__s));
}
// append
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s, size_type __n)
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append received nullptr");
size_type __cap = capacity();
size_type __sz = size();
if (__cap - __sz >= __n)
{
if (__n)
{
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
traits_type::copy(__p + __sz, __s, __n);
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
}
}
else
__grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __sz, 0, __n, __s);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::append(size_type __n, value_type __c)
{
if (__n)
{
size_type __cap = capacity();
size_type __sz = size();
if (__cap - __sz < __n)
__grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0);
pointer __p = __get_pointer();
traits_type::assign(_VSTD::__to_raw_pointer(__p) + __sz, __n, __c);
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
}
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
inline void
basic_string<_CharT, _Traits, _Allocator>::__append_default_init(size_type __n)
{
if (__n)
{
size_type __cap = capacity();
size_type __sz = size();
if (__cap - __sz < __n)
__grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0);
pointer __p = __get_pointer();
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
}
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::push_back(value_type __c)
{
bool __is_short = !__is_long();
size_type __cap;
size_type __sz;
if (__is_short)
{
__cap = __min_cap - 1;
__sz = __get_short_size();
}
else
{
__cap = __get_long_cap() - 1;
__sz = __get_long_size();
}
if (__sz == __cap)
{
__grow_by(__cap, 1, __sz, __sz, 0);
__is_short = !__is_long();
}
pointer __p;
if (__is_short)
{
__p = __get_short_pointer() + __sz;
__set_short_size(__sz+1);
}
else
{
__p = __get_long_pointer() + __sz;
__set_long_size(__sz+1);
}
traits_type::assign(*__p, __c);
traits_type::assign(*++__p, value_type());
}
template <class _Tp>
bool __ptr_in_range (const _Tp* __p, const _Tp* __first, const _Tp* __last)
{
return __first <= __p && __p < __last;
}
template <class _Tp1, class _Tp2>
bool __ptr_in_range (const _Tp1*, const _Tp2*, const _Tp2*)
{
return false;
}
template <class _CharT, class _Traits, class _Allocator>
template<class _ForwardIterator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::__append_forward_unsafe(
_ForwardIterator __first, _ForwardIterator __last)
{
static_assert(__is_forward_iterator<_ForwardIterator>::value,
"function requires a ForwardIterator");
size_type __sz = size();
size_type __cap = capacity();
size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
if (__n)
{
typedef typename iterator_traits<_ForwardIterator>::reference _CharRef;
_CharRef __tmp_ref = *__first;
if (__ptr_in_range(_VSTD::addressof(__tmp_ref), data(), data() + size()))
{
const basic_string __temp (__first, __last, __alloc());
append(__temp.data(), __temp.size());
}
else
{
if (__cap - __sz < __n)
__grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0);
pointer __p = __get_pointer() + __sz;
for (; __first != __last; ++__p, ++__first)
traits_type::assign(*__p, *__first);
traits_type::assign(*__p, value_type());
__set_size(__sz + __n);
}
}
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str)
{
return append(__str.data(), __str.size());
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str, size_type __pos, size_type __n)
{
size_type __sz = __str.size();
if (__pos > __sz)
this->__throw_out_of_range();
return append(__str.data() + __pos, _VSTD::min(__n, __sz - __pos));
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::append(const _Tp & __t, size_type __pos, size_type __n)
{
__self_view __sv = __t;
size_type __sz = __sv.size();
if (__pos > __sz)
this->__throw_out_of_range();
return append(__sv.data() + __pos, _VSTD::min(__n, __sz - __pos));
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s)
{
_LIBCPP_ASSERT(__s != nullptr, "string::append received nullptr");
return append(__s, traits_type::length(__s));
}
// insert
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s, size_type __n)
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert received nullptr");
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
size_type __cap = capacity();
if (__cap - __sz >= __n)
{
if (__n)
{
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
size_type __n_move = __sz - __pos;
if (__n_move != 0)
{
if (__p + __pos <= __s && __s < __p + __sz)
__s += __n;
traits_type::move(__p + __pos + __n, __p + __pos, __n_move);
}
traits_type::move(__p + __pos, __s, __n);
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
}
}
else
__grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, size_type __n, value_type __c)
{
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
if (__n)
{
size_type __cap = capacity();
value_type* __p;
if (__cap - __sz >= __n)
{
__p = _VSTD::__to_raw_pointer(__get_pointer());
size_type __n_move = __sz - __pos;
if (__n_move != 0)
traits_type::move(__p + __pos + __n, __p + __pos, __n_move);
}
else
{
__grow_by(__cap, __sz + __n - __cap, __sz, __pos, 0, __n);
__p = _VSTD::__to_raw_pointer(__get_long_pointer());
}
traits_type::assign(__p + __pos, __n, __c);
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
}
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
template<class _InputIterator>
typename enable_if
<
__is_exactly_input_iterator<_InputIterator>::value
|| !__libcpp_string_gets_noexcept_iterator<_InputIterator>::value,
typename basic_string<_CharT, _Traits, _Allocator>::iterator
>::type
basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _InputIterator __first, _InputIterator __last)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
"string::insert(iterator, range) called with an iterator not"
" referring to this string");
#endif
const basic_string __temp(__first, __last, __alloc());
return insert(__pos, __temp.data(), __temp.data() + __temp.size());
}
template <class _CharT, class _Traits, class _Allocator>
template<class _ForwardIterator>
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value
&& __libcpp_string_gets_noexcept_iterator<_ForwardIterator>::value,
typename basic_string<_CharT, _Traits, _Allocator>::iterator
>::type
basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
"string::insert(iterator, range) called with an iterator not"
" referring to this string");
#endif
size_type __ip = static_cast<size_type>(__pos - begin());
size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last));
if (__n)
{
typedef typename iterator_traits<_ForwardIterator>::reference _CharRef;
_CharRef __tmp_char = *__first;
if (__ptr_in_range(_VSTD::addressof(__tmp_char), data(), data() + size()))
{
const basic_string __temp(__first, __last, __alloc());
return insert(__pos, __temp.data(), __temp.data() + __temp.size());
}
size_type __sz = size();
size_type __cap = capacity();
value_type* __p;
if (__cap - __sz >= __n)
{
__p = _VSTD::__to_raw_pointer(__get_pointer());
size_type __n_move = __sz - __ip;
if (__n_move != 0)
traits_type::move(__p + __ip + __n, __p + __ip, __n_move);
}
else
{
__grow_by(__cap, __sz + __n - __cap, __sz, __ip, 0, __n);
__p = _VSTD::__to_raw_pointer(__get_long_pointer());
}
__sz += __n;
__set_size(__sz);
traits_type::assign(__p[__sz], value_type());
for (__p += __ip; __first != __last; ++__p, ++__first)
traits_type::assign(*__p, *__first);
}
return begin() + __ip;
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str)
{
return insert(__pos1, __str.data(), __str.size());
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str,
size_type __pos2, size_type __n)
{
size_type __str_sz = __str.size();
if (__pos2 > __str_sz)
this->__throw_out_of_range();
return insert(__pos1, __str.data() + __pos2, _VSTD::min(__n, __str_sz - __pos2));
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const _Tp& __t,
size_type __pos2, size_type __n)
{
__self_view __sv = __t;
size_type __str_sz = __sv.size();
if (__pos2 > __str_sz)
this->__throw_out_of_range();
return insert(__pos1, __sv.data() + __pos2, _VSTD::min(__n, __str_sz - __pos2));
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s)
{
_LIBCPP_ASSERT(__s != nullptr, "string::insert received nullptr");
return insert(__pos, __s, traits_type::length(__s));
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::iterator
basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, value_type __c)
{
size_type __ip = static_cast<size_type>(__pos - begin());
size_type __sz = size();
size_type __cap = capacity();
value_type* __p;
if (__cap == __sz)
{
__grow_by(__cap, 1, __sz, __ip, 0, 1);
__p = _VSTD::__to_raw_pointer(__get_long_pointer());
}
else
{
__p = _VSTD::__to_raw_pointer(__get_pointer());
size_type __n_move = __sz - __ip;
if (__n_move != 0)
traits_type::move(__p + __ip + 1, __p + __ip, __n_move);
}
traits_type::assign(__p[__ip], __c);
traits_type::assign(__p[++__sz], value_type());
__set_size(__sz);
return begin() + static_cast<difference_type>(__ip);
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::iterator
basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, size_type __n, value_type __c)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
"string::insert(iterator, n, value) called with an iterator not"
" referring to this string");
#endif
difference_type __p = __pos - begin();
insert(static_cast<size_type>(__p), __n, __c);
return begin() + __p;
}
// replace
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
_LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace received nullptr");
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
__n1 = _VSTD::min(__n1, __sz - __pos);
size_type __cap = capacity();
if (__cap - __sz + __n1 >= __n2)
{
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
if (__n1 != __n2)
{
size_type __n_move = __sz - __pos - __n1;
if (__n_move != 0)
{
if (__n1 > __n2)
{
traits_type::move(__p + __pos, __s, __n2);
traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
goto __finish;
}
if (__p + __pos < __s && __s < __p + __sz)
{
if (__p + __pos + __n1 <= __s)
__s += __n2 - __n1;
else // __p + __pos < __s < __p + __pos + __n1
{
traits_type::move(__p + __pos, __s, __n1);
__pos += __n1;
__s += __n2;
__n2 -= __n1;
__n1 = 0;
}
}
traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
}
}
traits_type::move(__p + __pos, __s, __n2);
__finish:
// __sz += __n2 - __n1; in this and the below function below can cause unsigned integer overflow,
// but this is a safe operation, so we disable the check.
__sz += __n2 - __n1;
__set_size(__sz);
__invalidate_iterators_past(__sz);
traits_type::assign(__p[__sz], value_type());
}
else
__grow_by_and_replace(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2, __s);
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, size_type __n2, value_type __c)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
__n1 = _VSTD::min(__n1, __sz - __pos);
size_type __cap = capacity();
value_type* __p;
if (__cap - __sz + __n1 >= __n2)
{
__p = _VSTD::__to_raw_pointer(__get_pointer());
if (__n1 != __n2)
{
size_type __n_move = __sz - __pos - __n1;
if (__n_move != 0)
traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move);
}
}
else
{
__grow_by(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2);
__p = _VSTD::__to_raw_pointer(__get_long_pointer());
}
traits_type::assign(__p + __pos, __n2, __c);
__sz += __n2 - __n1;
__set_size(__sz);
__invalidate_iterators_past(__sz);
traits_type::assign(__p[__sz], value_type());
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
template<class _InputIterator>
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2,
_InputIterator __j1, _InputIterator __j2)
{
const basic_string __temp(__j1, __j2, __alloc());
return this->replace(__i1, __i2, __temp);
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str)
{
return replace(__pos1, __n1, __str.data(), __str.size());
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str,
size_type __pos2, size_type __n2)
{
size_type __str_sz = __str.size();
if (__pos2 > __str_sz)
this->__throw_out_of_range();
return replace(__pos1, __n1, __str.data() + __pos2, _VSTD::min(__n2, __str_sz - __pos2));
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
basic_string<_CharT, _Traits, _Allocator>&
>::type
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const _Tp& __t,
size_type __pos2, size_type __n2)
{
__self_view __sv = __t;
size_type __str_sz = __sv.size();
if (__pos2 > __str_sz)
this->__throw_out_of_range();
return replace(__pos1, __n1, __sv.data() + __pos2, _VSTD::min(__n2, __str_sz - __pos2));
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s)
{
_LIBCPP_ASSERT(__s != nullptr, "string::replace received nullptr");
return replace(__pos, __n1, __s, traits_type::length(__s));
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const basic_string& __str)
{
return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1),
__str.data(), __str.size());
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n)
{
return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s, __n);
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s)
{
return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __s);
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c)
{
return replace(static_cast<size_type>(__i1 - begin()), static_cast<size_type>(__i2 - __i1), __n, __c);
}
// erase
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>&
basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos, size_type __n)
{
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
if (__n)
{
value_type* __p = _VSTD::__to_raw_pointer(__get_pointer());
__n = _VSTD::min(__n, __sz - __pos);
size_type __n_move = __sz - __pos - __n;
if (__n_move != 0)
traits_type::move(__p + __pos, __p + __pos + __n, __n_move);
__sz -= __n;
__set_size(__sz);
__invalidate_iterators_past(__sz);
traits_type::assign(__p[__sz], value_type());
}
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::iterator
basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __pos)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this,
"string::erase(iterator) called with an iterator not"
" referring to this string");
#endif
_LIBCPP_ASSERT(__pos != end(),
"string::erase(iterator) called with a non-dereferenceable iterator");
iterator __b = begin();
size_type __r = static_cast<size_type>(__pos - __b);
erase(__r, 1);
return __b + static_cast<difference_type>(__r);
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::iterator
basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __first, const_iterator __last)
{
#if _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this,
"string::erase(iterator, iterator) called with an iterator not"
" referring to this string");
#endif
_LIBCPP_ASSERT(__first <= __last, "string::erase(first, last) called with invalid range");
iterator __b = begin();
size_type __r = static_cast<size_type>(__first - __b);
erase(__r, static_cast<size_type>(__last - __first));
return __b + static_cast<difference_type>(__r);
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::pop_back()
{
_LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty");
size_type __sz;
if (__is_long())
{
__sz = __get_long_size() - 1;
__set_long_size(__sz);
traits_type::assign(*(__get_long_pointer() + __sz), value_type());
}
else
{
__sz = __get_short_size() - 1;
__set_short_size(__sz);
traits_type::assign(*(__get_short_pointer() + __sz), value_type());
}
__invalidate_iterators_past(__sz);
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::clear() _NOEXCEPT
{
__invalidate_all_iterators();
if (__is_long())
{
traits_type::assign(*__get_long_pointer(), value_type());
__set_long_size(0);
}
else
{
traits_type::assign(*__get_short_pointer(), value_type());
__set_short_size(0);
}
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__erase_to_end(size_type __pos)
{
if (__is_long())
{
traits_type::assign(*(__get_long_pointer() + __pos), value_type());
__set_long_size(__pos);
}
else
{
traits_type::assign(*(__get_short_pointer() + __pos), value_type());
__set_short_size(__pos);
}
__invalidate_iterators_past(__pos);
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::resize(size_type __n, value_type __c)
{
size_type __sz = size();
if (__n > __sz)
append(__n - __sz, __c);
else
__erase_to_end(__n);
}
template <class _CharT, class _Traits, class _Allocator>
inline void
basic_string<_CharT, _Traits, _Allocator>::__resize_default_init(size_type __n)
{
size_type __sz = size();
if (__n > __sz) {
__append_default_init(__n - __sz);
} else
__erase_to_end(__n);
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::max_size() const _NOEXCEPT
{
size_type __m = __alloc_traits::max_size(__alloc());
#ifdef _LIBCPP_BIG_ENDIAN
return (__m <= ~__long_mask ? __m : __m/2) - __alignment;
#else
return __m - __alignment;
#endif
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_string<_CharT, _Traits, _Allocator>::reserve(size_type __res_arg)
{
if (__res_arg > max_size())
this->__throw_length_error();
size_type __cap = capacity();
size_type __sz = size();
__res_arg = _VSTD::max(__res_arg, __sz);
__res_arg = __recommend(__res_arg);
if (__res_arg != __cap)
{
pointer __new_data, __p;
bool __was_long, __now_long;
if (__res_arg == __min_cap - 1)
{
__was_long = true;
__now_long = false;
__new_data = __get_short_pointer();
__p = __get_long_pointer();
}
else
{
if (__res_arg > __cap)
__new_data = __alloc_traits::allocate(__alloc(), __res_arg+1);
else
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
__new_data = __alloc_traits::allocate(__alloc(), __res_arg+1);
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
return;
}
#else // _LIBCPP_NO_EXCEPTIONS
if (__new_data == nullptr)
return;
#endif // _LIBCPP_NO_EXCEPTIONS
}
__now_long = true;
__was_long = __is_long();
__p = __get_pointer();
}
traits_type::copy(_VSTD::__to_raw_pointer(__new_data),
_VSTD::__to_raw_pointer(__p), size()+1);
if (__was_long)
__alloc_traits::deallocate(__alloc(), __p, __cap+1);
if (__now_long)
{
__set_long_cap(__res_arg+1);
__set_long_size(__sz);
__set_long_pointer(__new_data);
}
else
__set_short_size(__sz);
__invalidate_all_iterators();
}
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::const_reference
basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__pos <= size(), "string index out of bounds");
return *(data() + __pos);
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::reference
basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) _NOEXCEPT
{
_LIBCPP_ASSERT(__pos <= size(), "string index out of bounds");
return *(__get_pointer() + __pos);
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::const_reference
basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) const
{
if (__n >= size())
this->__throw_out_of_range();
return (*this)[__n];
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::reference
basic_string<_CharT, _Traits, _Allocator>::at(size_type __n)
{
if (__n >= size())
this->__throw_out_of_range();
return (*this)[__n];
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::reference
basic_string<_CharT, _Traits, _Allocator>::front()
{
_LIBCPP_ASSERT(!empty(), "string::front(): string is empty");
return *__get_pointer();
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::const_reference
basic_string<_CharT, _Traits, _Allocator>::front() const
{
_LIBCPP_ASSERT(!empty(), "string::front(): string is empty");
return *data();
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::reference
basic_string<_CharT, _Traits, _Allocator>::back()
{
_LIBCPP_ASSERT(!empty(), "string::back(): string is empty");
return *(__get_pointer() + size() - 1);
}
template <class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::const_reference
basic_string<_CharT, _Traits, _Allocator>::back() const
{
_LIBCPP_ASSERT(!empty(), "string::back(): string is empty");
return *(data() + size() - 1);
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::copy(value_type* __s, size_type __n, size_type __pos) const
{
size_type __sz = size();
if (__pos > __sz)
this->__throw_out_of_range();
size_type __rlen = _VSTD::min(__n, __sz - __pos);
traits_type::copy(__s, data() + __pos, __rlen);
return __rlen;
}
template <class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>
basic_string<_CharT, _Traits, _Allocator>::substr(size_type __pos, size_type __n) const
{
return basic_string(*this, __pos, __n, __alloc());
}
template <class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str)
#if _LIBCPP_STD_VER >= 14
_NOEXCEPT_DEBUG
#else
_NOEXCEPT_DEBUG_(!__alloc_traits::propagate_on_container_swap::value ||
__is_nothrow_swappable<allocator_type>::value)
#endif
{
#if _LIBCPP_DEBUG_LEVEL >= 2
if (!__is_long())
__get_db()->__invalidate_all(this);
if (!__str.__is_long())
__get_db()->__invalidate_all(&__str);
__get_db()->swap(this, &__str);
#endif
_LIBCPP_ASSERT(
__alloc_traits::propagate_on_container_swap::value ||
__alloc_traits::is_always_equal::value ||
__alloc() == __str.__alloc(), "swapping non-equal allocators");
_VSTD::swap(__r_.first(), __str.__r_.first());
__swap_allocator(__alloc(), __str.__alloc());
}
// find
template <class _Traits>
struct _LIBCPP_HIDDEN __traits_eq
{
typedef typename _Traits::char_type char_type;
_LIBCPP_INLINE_VISIBILITY
bool operator()(const char_type& __x, const char_type& __y) _NOEXCEPT
{return _Traits::eq(__x, __y);}
};
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): received nullptr");
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::find(const _Tp &__t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::find(): received nullptr");
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find(value_type __c,
size_type __pos) const _NOEXCEPT
{
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
// rfind
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): received nullptr");
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::rfind(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::rfind(const _Tp& __t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::rfind(): received nullptr");
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::rfind(value_type __c,
size_type __pos) const _NOEXCEPT
{
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
// find_first_of
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): received nullptr");
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_of(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::find_first_of(const _Tp& __t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): received nullptr");
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_of(value_type __c,
size_type __pos) const _NOEXCEPT
{
return find(__c, __pos);
}
// find_last_of
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): received nullptr");
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_of(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::find_last_of(const _Tp& __t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): received nullptr");
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_of(value_type __c,
size_type __pos) const _NOEXCEPT
{
return rfind(__c, __pos);
}
// find_first_not_of
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): received nullptr");
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const _Tp& __t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): received nullptr");
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(value_type __c,
size_type __pos) const _NOEXCEPT
{
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
// find_last_not_of
template<class _CharT, class _Traits, class _Allocator>
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s,
size_type __pos,
size_type __n) const _NOEXCEPT
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): received nullptr");
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const basic_string& __str,
size_type __pos) const _NOEXCEPT
{
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __str.data(), __pos, __str.size());
}
template<class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
typename basic_string<_CharT, _Traits, _Allocator>::size_type
>::type
basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const _Tp& __t,
size_type __pos) const
{
__self_view __sv = __t;
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __sv.data(), __pos, __sv.size());
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s,
size_type __pos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): received nullptr");
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
template<class _CharT, class _Traits, class _Allocator>
inline
typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(value_type __c,
size_type __pos) const _NOEXCEPT
{
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
// compare
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
basic_string<_CharT, _Traits, _Allocator>::compare(const _Tp& __t) const
{
__self_view __sv = __t;
size_t __lhs_sz = size();
size_t __rhs_sz = __sv.size();
int __result = traits_type::compare(data(), __sv.data(),
_VSTD::min(__lhs_sz, __rhs_sz));
if (__result != 0)
return __result;
if (__lhs_sz < __rhs_sz)
return -1;
if (__lhs_sz > __rhs_sz)
return 1;
return 0;
}
template <class _CharT, class _Traits, class _Allocator>
inline
int
basic_string<_CharT, _Traits, _Allocator>::compare(const basic_string& __str) const _NOEXCEPT
{
return compare(__self_view(__str));
}
template <class _CharT, class _Traits, class _Allocator>
int
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const value_type* __s,
size_type __n2) const
{
_LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): received nullptr");
size_type __sz = size();
if (__pos1 > __sz || __n2 == npos)
this->__throw_out_of_range();
size_type __rlen = _VSTD::min(__n1, __sz - __pos1);
int __r = traits_type::compare(data() + __pos1, __s, _VSTD::min(__rlen, __n2));
if (__r == 0)
{
if (__rlen < __n2)
__r = -1;
else if (__rlen > __n2)
__r = 1;
}
return __r;
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const _Tp& __t) const
{
__self_view __sv = __t;
return compare(__pos1, __n1, __sv.data(), __sv.size());
}
template <class _CharT, class _Traits, class _Allocator>
inline
int
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const basic_string& __str) const
{
return compare(__pos1, __n1, __str.data(), __str.size());
}
template <class _CharT, class _Traits, class _Allocator>
template <class _Tp>
typename enable_if
<
__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value,
int
>::type
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const _Tp& __t,
size_type __pos2,
size_type __n2) const
{
__self_view __sv = __t;
return __self_view(*this).substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2));
}
template <class _CharT, class _Traits, class _Allocator>
int
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const basic_string& __str,
size_type __pos2,
size_type __n2) const
{
return compare(__pos1, __n1, __self_view(__str), __pos2, __n2);
}
template <class _CharT, class _Traits, class _Allocator>
int
basic_string<_CharT, _Traits, _Allocator>::compare(const value_type* __s) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr");
return compare(0, npos, __s, traits_type::length(__s));
}
template <class _CharT, class _Traits, class _Allocator>
int
basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1,
size_type __n1,
const value_type* __s) const
{
_LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr");
return compare(__pos1, __n1, __s, traits_type::length(__s));
}
// __invariants
template<class _CharT, class _Traits, class _Allocator>
inline
bool
basic_string<_CharT, _Traits, _Allocator>::__invariants() const
{
if (size() > capacity())
return false;
if (capacity() < __min_cap - 1)
return false;
if (data() == 0)
return false;
if (data()[size()] != value_type(0))
return false;
return true;
}
// __clear_and_shrink
template<class _CharT, class _Traits, class _Allocator>
inline
void
basic_string<_CharT, _Traits, _Allocator>::__clear_and_shrink() _NOEXCEPT
{
clear();
if(__is_long())
{
__alloc_traits::deallocate(__alloc(), __get_long_pointer(), capacity() + 1);
__set_long_cap(0);
__set_short_size(0);
}
}
// operator==
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
size_t __lhs_sz = __lhs.size();
return __lhs_sz == __rhs.size() && _Traits::compare(__lhs.data(),
__rhs.data(),
__lhs_sz) == 0;
}
template<class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const basic_string<char, char_traits<char>, _Allocator>& __lhs,
const basic_string<char, char_traits<char>, _Allocator>& __rhs) _NOEXCEPT
{
size_t __lhs_sz = __lhs.size();
if (__lhs_sz != __rhs.size())
return false;
const char* __lp = __lhs.data();
const char* __rp = __rhs.data();
if (__lhs.__is_long())
return char_traits<char>::compare(__lp, __rp, __lhs_sz) == 0;
for (; __lhs_sz != 0; --__lhs_sz, ++__lp, ++__rp)
if (*__lp != *__rp)
return false;
return true;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
typedef basic_string<_CharT, _Traits, _Allocator> _String;
_LIBCPP_ASSERT(__lhs != nullptr, "operator==(char*, basic_string): received nullptr");
size_t __lhs_len = _Traits::length(__lhs);
if (__lhs_len != __rhs.size()) return false;
return __rhs.compare(0, _String::npos, __lhs, __lhs_len) == 0;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const basic_string<_CharT,_Traits,_Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
typedef basic_string<_CharT, _Traits, _Allocator> _String;
_LIBCPP_ASSERT(__rhs != nullptr, "operator==(basic_string, char*): received nullptr");
size_t __rhs_len = _Traits::length(__rhs);
if (__rhs_len != __lhs.size()) return false;
return __lhs.compare(0, _String::npos, __rhs, __rhs_len) == 0;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const basic_string<_CharT,_Traits,_Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__lhs == __rhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__lhs == __rhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
return !(__lhs == __rhs);
}
// operator<
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) < 0;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) < 0;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return __rhs.compare(__lhs) > 0;
}
// operator>
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return __rhs < __lhs;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
return __rhs < __lhs;
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return __rhs < __lhs;
}
// operator<=
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__rhs < __lhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
return !(__rhs < __lhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__rhs < __lhs);
}
// operator>=
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__lhs < __rhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const _CharT* __rhs) _NOEXCEPT
{
return !(__lhs < __rhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const _CharT* __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT
{
return !(__lhs < __rhs);
}
// operator +
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs,
const basic_string<_CharT, _Traits, _Allocator>& __rhs)
{
basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
__r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz);
__r.append(__rhs.data(), __rhs_sz);
return __r;
}
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const _CharT* __lhs , const basic_string<_CharT,_Traits,_Allocator>& __rhs)
{
basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator());
typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = _Traits::length(__lhs);
typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
__r.__init(__lhs, __lhs_sz, __lhs_sz + __rhs_sz);
__r.append(__rhs.data(), __rhs_sz);
return __r;
}
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Allocator>& __rhs)
{
basic_string<_CharT, _Traits, _Allocator> __r(__rhs.get_allocator());
typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = __rhs.size();
__r.__init(&__lhs, 1, 1 + __rhs_sz);
__r.append(__rhs.data(), __rhs_sz);
return __r;
}
template<class _CharT, class _Traits, class _Allocator>
inline
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs)
{
basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
typename basic_string<_CharT, _Traits, _Allocator>::size_type __rhs_sz = _Traits::length(__rhs);
__r.__init(__lhs.data(), __lhs_sz, __lhs_sz + __rhs_sz);
__r.append(__rhs, __rhs_sz);
return __r;
}
template<class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, _CharT __rhs)
{
basic_string<_CharT, _Traits, _Allocator> __r(__lhs.get_allocator());
typename basic_string<_CharT, _Traits, _Allocator>::size_type __lhs_sz = __lhs.size();
__r.__init(__lhs.data(), __lhs_sz, __lhs_sz + 1);
__r.push_back(__rhs);
return __r;
}
#ifndef _LIBCPP_CXX03_LANG
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs)
{
return _VSTD::move(__lhs.append(__rhs));
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs)
{
return _VSTD::move(__rhs.insert(0, __lhs));
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs)
{
return _VSTD::move(__lhs.append(__rhs));
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(const _CharT* __lhs , basic_string<_CharT,_Traits,_Allocator>&& __rhs)
{
return _VSTD::move(__rhs.insert(0, __lhs));
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(_CharT __lhs, basic_string<_CharT,_Traits,_Allocator>&& __rhs)
{
__rhs.insert(__rhs.begin(), __lhs);
return _VSTD::move(__rhs);
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const _CharT* __rhs)
{
return _VSTD::move(__lhs.append(__rhs));
}
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>
operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, _CharT __rhs)
{
__lhs.push_back(__rhs);
return _VSTD::move(__lhs);
}
#endif // _LIBCPP_CXX03_LANG
// swap
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(basic_string<_CharT, _Traits, _Allocator>& __lhs,
basic_string<_CharT, _Traits, _Allocator>& __rhs)
_NOEXCEPT_(_NOEXCEPT_(__lhs.swap(__rhs)))
{
__lhs.swap(__rhs);
}
#ifndef _LIBCPP_NO_HAS_CHAR8_T
typedef basic_string<char8_t> u8string;
#endif
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
typedef basic_string<char16_t> u16string;
typedef basic_string<char32_t> u32string;
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
_LIBCPP_FUNC_VIS int stoi (const string& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS long stol (const string& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS unsigned long stoul (const string& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS long long stoll (const string& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS unsigned long long stoull(const string& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS float stof (const string& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS double stod (const string& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS long double stold(const string& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS string to_string(int __val);
_LIBCPP_FUNC_VIS string to_string(unsigned __val);
_LIBCPP_FUNC_VIS string to_string(long __val);
_LIBCPP_FUNC_VIS string to_string(unsigned long __val);
_LIBCPP_FUNC_VIS string to_string(long long __val);
_LIBCPP_FUNC_VIS string to_string(unsigned long long __val);
_LIBCPP_FUNC_VIS string to_string(float __val);
_LIBCPP_FUNC_VIS string to_string(double __val);
_LIBCPP_FUNC_VIS string to_string(long double __val);
_LIBCPP_FUNC_VIS int stoi (const wstring& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS long stol (const wstring& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS unsigned long stoul (const wstring& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS long long stoll (const wstring& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS unsigned long long stoull(const wstring& __str, size_t* __idx = 0, int __base = 10);
_LIBCPP_FUNC_VIS float stof (const wstring& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS double stod (const wstring& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS long double stold(const wstring& __str, size_t* __idx = 0);
_LIBCPP_FUNC_VIS wstring to_wstring(int __val);
_LIBCPP_FUNC_VIS wstring to_wstring(unsigned __val);
_LIBCPP_FUNC_VIS wstring to_wstring(long __val);
_LIBCPP_FUNC_VIS wstring to_wstring(unsigned long __val);
_LIBCPP_FUNC_VIS wstring to_wstring(long long __val);
_LIBCPP_FUNC_VIS wstring to_wstring(unsigned long long __val);
_LIBCPP_FUNC_VIS wstring to_wstring(float __val);
_LIBCPP_FUNC_VIS wstring to_wstring(double __val);
_LIBCPP_FUNC_VIS wstring to_wstring(long double __val);
template<class _CharT, class _Traits, class _Allocator>
const typename basic_string<_CharT, _Traits, _Allocator>::size_type
basic_string<_CharT, _Traits, _Allocator>::npos;
template<class _CharT, class _Traits, class _Allocator>
struct _LIBCPP_TEMPLATE_VIS hash<basic_string<_CharT, _Traits, _Allocator> >
: public unary_function<basic_string<_CharT, _Traits, _Allocator>, size_t>
{
size_t
operator()(const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT;
};
template<class _CharT, class _Traits, class _Allocator>
size_t
hash<basic_string<_CharT, _Traits, _Allocator> >::operator()(
const basic_string<_CharT, _Traits, _Allocator>& __val) const _NOEXCEPT
{
return __do_string_hash(__val.data(), __val.data() + __val.size());
}
template<class _CharT, class _Traits, class _Allocator>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
const basic_string<_CharT, _Traits, _Allocator>& __str);
template<class _CharT, class _Traits, class _Allocator>
basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is,
basic_string<_CharT, _Traits, _Allocator>& __str);
template<class _CharT, class _Traits, class _Allocator>
basic_istream<_CharT, _Traits>&
getline(basic_istream<_CharT, _Traits>& __is,
basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm);
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_istream<_CharT, _Traits>&
getline(basic_istream<_CharT, _Traits>& __is,
basic_string<_CharT, _Traits, _Allocator>& __str);
#ifndef _LIBCPP_CXX03_LANG
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_istream<_CharT, _Traits>&
getline(basic_istream<_CharT, _Traits>&& __is,
basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm);
template<class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
basic_istream<_CharT, _Traits>&
getline(basic_istream<_CharT, _Traits>&& __is,
basic_string<_CharT, _Traits, _Allocator>& __str);
#endif // _LIBCPP_CXX03_LANG
#if _LIBCPP_STD_VER > 17
template<class _CharT, class _Traits, class _Allocator, class _Up>
inline _LIBCPP_INLINE_VISIBILITY
void erase(basic_string<_CharT, _Traits, _Allocator>& __str, const _Up& __v)
{ __str.erase(_VSTD::remove(__str.begin(), __str.end(), __v), __str.end()); }
template<class _CharT, class _Traits, class _Allocator, class _Predicate>
inline _LIBCPP_INLINE_VISIBILITY
void erase_if(basic_string<_CharT, _Traits, _Allocator>& __str, _Predicate __pred)
{ __str.erase(_VSTD::remove_if(__str.begin(), __str.end(), __pred), __str.end()); }
#endif
#if _LIBCPP_DEBUG_LEVEL >= 2
template<class _CharT, class _Traits, class _Allocator>
bool
basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const
{
return this->data() <= _VSTD::__to_raw_pointer(__i->base()) &&
_VSTD::__to_raw_pointer(__i->base()) < this->data() + this->size();
}
template<class _CharT, class _Traits, class _Allocator>
bool
basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const
{
return this->data() < _VSTD::__to_raw_pointer(__i->base()) &&
_VSTD::__to_raw_pointer(__i->base()) <= this->data() + this->size();
}
template<class _CharT, class _Traits, class _Allocator>
bool
basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const
{
const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n;
return this->data() <= __p && __p <= this->data() + this->size();
}
template<class _CharT, class _Traits, class _Allocator>
bool
basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const
{
const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n;
return this->data() <= __p && __p < this->data() + this->size();
}
#endif // _LIBCPP_DEBUG_LEVEL >= 2
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_string<char>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_string<wchar_t>)
#if _LIBCPP_STD_VER > 11
// Literal suffixes for basic_string [basic.string.literals]
inline namespace literals
{
inline namespace string_literals
{
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char> operator "" s( const char *__str, size_t __len )
{
return basic_string<char> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY
basic_string<wchar_t> operator "" s( const wchar_t *__str, size_t __len )
{
return basic_string<wchar_t> (__str, __len);
}
#ifndef _LIBCPP_NO_HAS_CHAR8_T
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char8_t> operator "" s(const char8_t *__str, size_t __len) _NOEXCEPT
{
return basic_string<char8_t> (__str, __len);
}
#endif
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char16_t> operator "" s( const char16_t *__str, size_t __len )
{
return basic_string<char16_t> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY
basic_string<char32_t> operator "" s( const char32_t *__str, size_t __len )
{
return basic_string<char32_t> (__str, __len);
}
}
}
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_STRING