// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++1y -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
namespace dr100 { // dr100: yes
template<const char *> struct A {}; // expected-note {{declared here}}
template<const char (&)[4]> struct B {}; // expected-note {{declared here}}
A<"foo"> a; // expected-error {{does not refer to any declaration}}
B<"bar"> b; // expected-error {{does not refer to any declaration}}
}
namespace dr101 { // dr101: 3.5
extern "C" void dr101_f();
typedef unsigned size_t;
namespace X {
extern "C" void dr101_f();
typedef unsigned size_t;
}
using X::dr101_f;
using X::size_t;
extern "C" void dr101_f();
typedef unsigned size_t;
}
namespace dr102 { // dr102: yes
namespace A {
template<typename T> T f(T a, T b) { return a + b; } // expected-error {{neither visible in the template definition nor found by argument-dependent lookup}}
}
namespace B {
struct S {};
}
B::S operator+(B::S, B::S); // expected-note {{should be declared prior to the call site or in namespace 'dr102::B'}}
template B::S A::f(B::S, B::S); // expected-note {{in instantiation of}}
}
// dr103: na
// dr104 FIXME: add codegen test
// dr105: na
namespace dr106 { // dr106: sup 540
typedef int &r1;
typedef r1 &r1;
typedef const r1 r1; // expected-warning {{has no effect}}
typedef const r1 &r1; // expected-warning {{has no effect}}
typedef const int &r2;
typedef r2 &r2;
typedef const r2 r2; // expected-warning {{has no effect}}
typedef const r2 &r2; // expected-warning {{has no effect}}
}
namespace dr107 { // dr107: yes
struct S {};
extern "C" S operator+(S, S) { return S(); }
}
namespace dr108 { // dr108: yes
template<typename T> struct A {
struct B { typedef int X; };
B::X x; // expected-error {{missing 'typename'}}
struct C : B { X x; }; // expected-error {{unknown type name}}
};
template<> struct A<int>::B { int X; };
}
namespace dr109 { // dr109: yes
struct A { template<typename T> void f(T); };
template<typename T> struct B : T {
using T::template f; // expected-error {{using declaration cannot refer to a template}}
void g() { this->f<int>(123); } // expected-error {{use 'template'}}
};
}
namespace dr111 { // dr111: dup 535
struct A { A(); A(volatile A&, int = 0); A(A&, const char * = "foo"); };
struct B : A { B(); }; // expected-note +{{would lose const qualifier}} expected-note {{requires 0 arguments}}
const B b1;
B b2(b1); // expected-error {{no matching constructor}}
}
namespace dr112 { // dr112: yes
struct T { int n; };
typedef T Arr[1];
const T a1[1] = {};
volatile T a2[1] = {};
const Arr a3 = {};
volatile Arr a4 = {};
template<const volatile T*> struct X {};
X<a1> x1;
X<a2> x2;
X<a3> x3;
X<a4> x4;
#if __cplusplus < 201103L
// expected-error@-5 {{internal linkage}} expected-note@-10 {{here}}
// expected-error@-4 {{internal linkage}} expected-note@-9 {{here}}
#else
// FIXME: Test this somehow.
#endif
}
namespace dr113 { // dr113: yes
extern void (*p)();
void f() {
no_such_function(); // expected-error {{undeclared}}
p();
}
void g();
void (*p)() = &g;
}
namespace dr114 { // dr114: yes
struct A {
virtual void f(int) = 0; // expected-note {{unimplemented}}
};
struct B : A {
template<typename T> void f(T);
void g() { f(0); }
} b; // expected-error {{abstract}}
}
namespace dr115 { // dr115: yes
template<typename T> int f(T); // expected-note +{{}}
template<typename T> int g(T); // expected-note +{{}}
template<typename T> int g(T, int); // expected-note +{{}}
int k1 = f(&f); // expected-error {{no match}}
int k2 = f(&f<int>);
int k3 = f(&g<int>); // expected-error {{no match}}
void h() {
(void)&f; // expected-error {{address of overloaded function 'f' cannot be cast to type 'void'}}
(void)&f<int>;
(void)&g<int>; // expected-error {{address of overloaded function 'g' cannot be cast to type 'void'}}
&f; // expected-error {{reference to overloaded function could not be resolved}}
&f<int>; // expected-warning {{unused}}
&g<int>; // expected-error {{reference to overloaded function could not be resolved}}
}
struct S {
template<typename T> static int f(T);
template<typename T> static int g(T);
template<typename T> static int g(T, int);
} s;
int k4 = f(&s.f); // expected-error {{non-constant pointer to member}}
int k5 = f(&s.f<int>);
int k6 = f(&s.g<int>); // expected-error {{non-constant pointer to member}}
void i() {
(void)&s.f; // expected-error {{non-constant pointer to member}}
(void)&s.f<int>;
(void)&s.g<int>; // expected-error {{non-constant pointer to member}}
&s.f; // expected-error {{non-constant pointer to member}}
&s.f<int>; // expected-warning {{unused}}
&s.g<int>; // expected-error {{non-constant pointer to member}}
}
struct T {
template<typename T> int f(T);
template<typename T> int g(T);
template<typename T> int g(T, int);
} t;
int k7 = f(&s.f); // expected-error {{non-constant pointer to member}}
int k8 = f(&s.f<int>);
int k9 = f(&s.g<int>); // expected-error {{non-constant pointer to member}}
void j() {
(void)&s.f; // expected-error {{non-constant pointer to member}}
(void)&s.f<int>;
(void)&s.g<int>; // expected-error {{non-constant pointer to member}}
&s.f; // expected-error {{non-constant pointer to member}}
&s.f<int>; // expected-warning {{unused}}
&s.g<int>; // expected-error {{non-constant pointer to member}}
}
#if __cplusplus >= 201103L
// Special case kicks in only if a template argument list is specified.
template<typename T=int> void with_default(); // expected-note +{{}}
int k10 = f(&with_default); // expected-error {{no matching function}}
int k11 = f(&with_default<>);
void k() {
(void)&with_default; // expected-error {{overloaded function}}
(void)&with_default<>;
&with_default; // expected-error {{overloaded function}}
&with_default<>; // expected-warning {{unused}}
}
#endif
}
namespace dr116 { // dr116: yes
template<int> struct A {};
template<int N> void f(A<N>) {} // expected-note {{previous}}
template<int M> void f(A<M>) {} // expected-error {{redefinition}}
template<typename T> void f(A<sizeof(T)>) {} // expected-note {{previous}}
template<typename U> void f(A<sizeof(U)>) {} // expected-error {{redefinition}}
}
// dr117: na
// dr118 FIXME: add codegen test
// dr119: na
// dr120: na
namespace dr121 { // dr121: yes
struct X {
template<typename T> struct Y {};
};
template<typename T> struct Z {
X::Y<T> x;
T::Y<T> y; // expected-error +{{}}
};
Z<X> z;
}
namespace dr122 { // dr122: yes
template<typename T> void f();
void g() { f<int>(); }
}
// dr123: na
// dr124: dup 201
// dr125: yes
struct dr125_A { struct dr125_B {}; }; // expected-note {{here}}
dr125_A::dr125_B dr125_C();
namespace dr125_B { dr125_A dr125_C(); }
namespace dr125 {
struct X {
friend dr125_A::dr125_B (::dr125_C)(); // ok
friend dr125_A (::dr125_B::dr125_C)(); // ok
friend dr125_A::dr125_B::dr125_C(); // expected-error {{did you mean the constructor name 'dr125_B'?}}
// expected-warning@-1 {{missing exception specification}}
#if __cplusplus >= 201103L
// expected-error@-3 {{follows constexpr declaration}} expected-note@-10 {{here}}
#endif
};
}
namespace dr126 { // dr126: no
struct C {};
struct D : C {};
struct E : private C { friend class A; friend class B; };
struct F : protected C {};
struct G : C {};
struct H : D, G {};
struct A {
virtual void cp() throw(C*);
virtual void dp() throw(C*);
virtual void ep() throw(C*); // expected-note {{overridden}}
virtual void fp() throw(C*); // expected-note {{overridden}}
virtual void gp() throw(C*);
virtual void hp() throw(C*); // expected-note {{overridden}}
virtual void cr() throw(C&);
virtual void dr() throw(C&);
virtual void er() throw(C&); // expected-note {{overridden}}
virtual void fr() throw(C&); // expected-note {{overridden}}
virtual void gr() throw(C&);
virtual void hr() throw(C&); // expected-note {{overridden}}
virtual void pv() throw(void*); // expected-note {{overridden}}
#if __cplusplus >= 201103L
virtual void np() throw(C*); // expected-note {{overridden}}
virtual void npm() throw(int C::*); // expected-note {{overridden}}
virtual void nr() throw(C&); // expected-note {{overridden}}
#endif
virtual void ref1() throw(C *const&);
virtual void ref2() throw(C *);
virtual void v() throw(int);
virtual void w() throw(const int);
virtual void x() throw(int*);
virtual void y() throw(const int*);
virtual void z() throw(int); // expected-note {{overridden}}
};
struct B : A {
virtual void cp() throw(C*);
virtual void dp() throw(D*);
virtual void ep() throw(E*); // expected-error {{more lax}}
virtual void fp() throw(F*); // expected-error {{more lax}}
virtual void gp() throw(G*);
virtual void hp() throw(H*); // expected-error {{more lax}}
virtual void cr() throw(C&);
virtual void dr() throw(D&);
virtual void er() throw(E&); // expected-error {{more lax}}
virtual void fr() throw(F&); // expected-error {{more lax}}
virtual void gr() throw(G&);
virtual void hr() throw(H&); // expected-error {{more lax}}
virtual void pv() throw(C*); // expected-error {{more lax}} FIXME: This is valid.
#if __cplusplus >= 201103L
using nullptr_t = decltype(nullptr);
virtual void np() throw(nullptr_t*); // expected-error {{more lax}} FIXME: This is valid.
virtual void npm() throw(nullptr_t*); // expected-error {{more lax}} FIXME: This is valid.
virtual void nr() throw(nullptr_t&); // expected-error {{more lax}} This is not.
#endif
virtual void ref1() throw(D *const &);
virtual void ref2() throw(D *);
virtual void v() throw(const int);
virtual void w() throw(int);
virtual void x() throw(const int*); // FIXME: 'const int*' is not allowed by A::h.
virtual void y() throw(int*); // ok
virtual void z() throw(long); // expected-error {{more lax}}
};
}
namespace dr127 { // dr127: yes
__extension__ typedef __decltype(sizeof(0)) size_t;
template<typename T> struct A {
A() throw(int);
void *operator new(size_t, const char * = 0);
void operator delete(void *, const char *) { T::error; } // expected-error 2{{no members}}
void operator delete(void *) { T::error; }
};
A<void> *p = new A<void>; // expected-note {{instantiat}}
A<int> *q = new ("") A<int>; // expected-note {{instantiat}}
}
namespace dr128 { // dr128: yes
enum E1 { e1 } x = e1;
enum E2 { e2 } y = static_cast<E2>(x), z = static_cast<E2>(e1);
}
// dr129: dup 616
// dr130: na
namespace dr131 { // dr131: yes
const char *a_with_\u0e8c = "\u0e8c";
const char *b_with_\u0e8d = "\u0e8d";
const char *c_with_\u0e8e = "\u0e8e";
#if __cplusplus < 201103L
// expected-error@-4 {{expected ';'}} expected-error@-2 {{expected ';'}}
#endif
}
namespace dr132 { // dr132: no
void f() {
extern struct {} x; // ok
extern struct S {} y; // FIXME: This is invalid.
}
static enum { E } e;
}
// dr133: dup 87
// dr134: na
namespace dr135 { // dr135: yes
struct A {
A f(A a) { return a; }
friend A g(A a) { return a; }
static A h(A a) { return a; }
};
}
namespace dr136 { // dr136: 3.4
void f(int, int, int = 0); // expected-note {{previous declaration is here}}
void g(int, int, int); // expected-note {{previous declaration is here}}
struct A {
friend void f(int, int = 0, int); // expected-error {{friend declaration specifying a default argument must be the only declaration}}
friend void g(int, int, int = 0); // expected-error {{friend declaration specifying a default argument must be the only declaration}}
friend void h(int, int, int = 0); // expected-error {{friend declaration specifying a default argument must be a definition}}
friend void i(int, int, int = 0) {} // expected-note {{previous declaration is here}}
friend void j(int, int, int = 0) {}
operator int();
};
void i(int, int, int); // expected-error {{friend declaration specifying a default argument must be the only declaration}}
void q() {
j(A(), A()); // ok, has default argument
}
extern "C" void k(int, int, int, int); // expected-note {{previous declaration is here}}
namespace NSA {
struct A {
friend void dr136::k(int, int, int, int = 0); // expected-error {{friend declaration specifying a default argument must be the only declaration}} \
// expected-note {{previous declaration is here}}
};
}
namespace NSB {
struct A {
friend void dr136::k(int, int, int = 0, int); // expected-error {{friend declaration specifying a default argument must be the only declaration}}
};
}
struct B {
void f(int); // expected-note {{previous declaration is here}}
};
struct C {
friend void B::f(int = 0); // expected-error {{friend declaration specifying a default argument must be the only declaration}}
};
}
namespace dr137 { // dr137: yes
extern void *p;
extern const void *cp;
extern volatile void *vp;
extern const volatile void *cvp;
int *q = static_cast<int*>(p);
int *qc = static_cast<int*>(cp); // expected-error {{casts away qualifiers}}
int *qv = static_cast<int*>(vp); // expected-error {{casts away qualifiers}}
int *qcv = static_cast<int*>(cvp); // expected-error {{casts away qualifiers}}
const int *cq = static_cast<const int*>(p);
const int *cqc = static_cast<const int*>(cp);
const int *cqv = static_cast<const int*>(vp); // expected-error {{casts away qualifiers}}
const int *cqcv = static_cast<const int*>(cvp); // expected-error {{casts away qualifiers}}
const volatile int *cvq = static_cast<const volatile int*>(p);
const volatile int *cvqc = static_cast<const volatile int*>(cp);
const volatile int *cvqv = static_cast<const volatile int*>(vp);
const volatile int *cvqcv = static_cast<const volatile int*>(cvp);
}
namespace dr139 { // dr139: yes
namespace example1 {
typedef int f; // expected-note {{previous}}
struct A {
friend void f(A &); // expected-error {{different kind of symbol}}
};
}
namespace example2 {
typedef int f;
namespace N {
struct A {
friend void f(A &);
operator int();
void g(A a) { int i = f(a); } // ok, f is typedef not friend function
};
}
}
}
namespace dr140 { // dr140: yes
void f(int *const) {} // expected-note {{previous}}
void f(int[3]) {} // expected-error {{redefinition}}
void g(const int);
void g(int n) { n = 2; }
}
namespace dr141 { // dr141: yes
template<typename T> void f();
template<typename T> struct S { int n; };
struct A : S<int> {
template<typename T> void f();
template<typename T> struct S {};
} a;
struct B : S<int> {} b;
void g() {
a.f<int>();
(void)a.S<int>::n; // expected-error {{no member named 'n'}}
#if __cplusplus < 201103L
// expected-error@-2 {{ambiguous}}
// expected-note@-11 {{lookup from the current scope}}
// expected-note@-9 {{lookup in the object type}}
#endif
b.f<int>(); // expected-error {{no member}} expected-error +{{}}
(void)b.S<int>::n;
}
template<typename T> struct C {
T t;
void g() {
t.f<int>(); // expected-error {{use 'template'}}
}
void h() {
(void)t.S<int>::n; // ok
}
void i() {
(void)t.S<int>(); // ok!
}
};
void h() { C<B>().h(); } // ok
struct X {
template<typename T> void S();
};
void i() { C<X>().i(); } // ok!!
}
namespace dr142 { // dr142: yes
class B { // expected-note +{{here}}
public:
int mi; // expected-note +{{here}}
static int si; // expected-note +{{here}}
};
class D : private B { // expected-note +{{here}}
};
class DD : public D {
void f();
};
void DD::f() {
mi = 3; // expected-error {{private base class}} expected-error {{private member}}
si = 3; // expected-error {{private member}}
B b_old; // expected-error {{private member}}
dr142::B b;
b.mi = 3;
b.si = 3;
B::si = 3; // expected-error {{private member}}
dr142::B::si = 3;
B *bp1_old = this; // expected-error {{private member}} expected-error {{private base class}}
dr142::B *bp1 = this; // expected-error {{private base class}}
B *bp2_old = (B*)this; // expected-error 2{{private member}}
dr142::B *bp2 = (dr142::B*)this;
bp2->mi = 3;
}
}
namespace dr143 { // dr143: yes
namespace A { struct X; }
namespace B { void f(A::X); }
namespace A {
struct X { friend void B::f(X); };
}
void g(A::X x) {
f(x); // expected-error {{undeclared identifier 'f'}}
}
}
namespace dr145 { // dr145: yes
void f(bool b) {
++b; // expected-warning {{deprecated}}
b++; // expected-warning {{deprecated}}
}
}
namespace dr147 { // dr147: no
namespace example1 {
template<typename> struct A {
template<typename T> A(T);
};
// FIXME: This appears to be valid, and EDG and G++ accept.
template<> template<> A<int>::A<int>(int) {} // expected-error {{out-of-line constructor for 'A' cannot have template arguments}}
}
namespace example2 {
struct A { A(); };
struct B : A { B(); };
A::A a1; // expected-error {{is a constructor}}
B::A a2;
}
namespace example3 {
template<typename> struct A {
template<typename T> A(T);
static A a;
};
template<> A<int>::A<int>(A<int>::a); // expected-error {{is a constructor}}
}
}
namespace dr148 { // dr148: yes
struct A { int A::*p; };
int check1[__is_pod(int(A::*)) ? 1 : -1];
int check2[__is_pod(A) ? 1 : -1];
}
// dr149: na
namespace dr151 { // dr151: yes
struct X {};
typedef int X::*p;
#if __cplusplus < 201103L
#define fold(x) (__builtin_constant_p(0) ? (x) : (x))
#else
#define fold
#endif
int check[fold(p() == 0) ? 1 : -1];
#undef fold
}
namespace dr152 { // dr152: yes
struct A {
A(); // expected-note {{not viable}}
explicit A(const A&);
};
A a1 = A(); // expected-error {{no matching constructor}}
A a2((A()));
}
// dr153: na
namespace dr154 { // dr154: yes
union { int a; }; // expected-error {{must be declared 'static'}}
namespace {
union { int b; };
}
static union { int c; };
}
namespace dr155 { // dr155: dup 632
struct S { int n; } s = { { 1 } }; // expected-warning {{braces around scalar initializer}}
}
// dr158 FIXME write codegen test
namespace dr159 { // dr159: 3.5
namespace X { void f(); }
void f();
void dr159::f() {} // expected-warning {{extra qualification}}
void dr159::X::f() {}
}
// dr160: na
namespace dr161 { // dr161: yes
class A {
protected:
struct B { int n; } b; // expected-note 2{{here}}
static B bs;
void f(); // expected-note {{here}}
static void sf();
};
struct C : A {};
struct D : A {
void g(C c) {
(void)b.n;
B b1;
C::B b2; // ok, accessible as a member of A
(void)&C::b; // expected-error {{protected}}
(void)&C::bs;
(void)c.b; // expected-error {{protected}}
(void)c.bs;
f();
sf();
c.f(); // expected-error {{protected}}
c.sf();
A::f();
D::f();
A::sf();
C::sf();
D::sf();
}
};
}
namespace dr162 { // dr162: no
struct A {
char &f(char);
static int &f(int);
void g() {
int &a = (&A::f)(0); // FIXME: expected-error {{could not be resolved}}
char &b = (&A::f)('0'); // expected-error {{could not be resolved}}
}
};
int &c = (&A::f)(0); // FIXME: expected-error {{could not be resolved}}
char &d = (&A::f)('0'); // expected-error {{could not be resolved}}
}
// dr163: na
namespace dr164 { // dr164: yes
void f(int);
template <class T> int g(T t) { return f(t); }
enum E { e };
int f(E);
int k = g(e);
}
namespace dr165 { // dr165: no
namespace N {
struct A { friend struct B; };
void f() { void g(); }
}
// FIXME: dr1477 says this is ok, dr165 says it's ill-formed
struct N::B {};
// FIXME: dr165 says this is ill-formed, but the argument in dr1477 says it's ok
void N::g() {}
}
namespace dr166 { // dr166: yes
namespace A { class X; }
template<typename T> int f(T t) { return t.n; }
int g(A::X);
template<typename T> int h(T t) { return t.n; } // expected-error {{private}}
int i(A::X);
namespace A {
class X {
friend int f<X>(X);
friend int dr166::g(X);
friend int h(X);
friend int i(X);
int n; // expected-note 2{{here}}
};
int h(X x) { return x.n; }
int i(X x) { return x.n; }
}
template int f(A::X);
int g(A::X x) { return x.n; }
template int h(A::X); // expected-note {{instantiation}}
int i(A::X x) { return x.n; } // expected-error {{private}}
}
// dr167: sup 1012
namespace dr168 { // dr168: no
extern "C" typedef int (*p)();
extern "C++" typedef int (*q)();
struct S {
static int f();
};
p a = &S::f; // FIXME: this should fail.
q b = &S::f;
}
namespace dr169 { // dr169: yes
template<typename> struct A { int n; };
struct B {
template<typename> struct C;
template<typename> void f();
template<typename> static int n; // expected-error 0-1{{extension}}
};
struct D : A<int>, B {
using A<int>::n;
using B::C<int>; // expected-error {{using declaration cannot refer to a template specialization}}
using B::f<int>; // expected-error {{using declaration cannot refer to a template specialization}}
using B::n<int>; // expected-error {{using declaration cannot refer to a template specialization}}
};
}
namespace { // dr171: yes
int dr171a;
}
int dr171b; // expected-note {{here}}
namespace dr171 {
extern "C" void dr171a();
extern "C" void dr171b(); // expected-error {{conflicts}}
}
namespace dr172 { // dr172: yes
enum { zero };
int check1[-1 < zero ? 1 : -1];
enum { x = -1, y = (unsigned int)-1 };
int check2[sizeof(x) > sizeof(int) ? 1 : -1];
enum { a = (unsigned int)-1 / 2 };
int check3a[sizeof(a) == sizeof(int) ? 1 : -1];
int check3b[-a < 0 ? 1 : -1];
enum { b = (unsigned int)-1 / 2 + 1 };
int check4a[sizeof(b) == sizeof(unsigned int) ? 1 : -1];
int check4b[-b > 0 ? 1 : -1];
enum { c = (unsigned long)-1 / 2 };
int check5a[sizeof(c) == sizeof(long) ? 1 : -1];
int check5b[-c < 0 ? 1 : -1];
enum { d = (unsigned long)-1 / 2 + 1 };
int check6a[sizeof(d) == sizeof(unsigned long) ? 1 : -1];
int check6b[-d > 0 ? 1 : -1];
enum { e = (unsigned long long)-1 / 2 }; // expected-error 0-1{{extension}}
int check7a[sizeof(e) == sizeof(long) ? 1 : -1]; // expected-error 0-1{{extension}}
int check7b[-e < 0 ? 1 : -1];
enum { f = (unsigned long long)-1 / 2 + 1 }; // expected-error 0-1{{extension}}
int check8a[sizeof(f) == sizeof(unsigned long) ? 1 : -1]; // expected-error 0-1{{extension}}
int check8b[-f > 0 ? 1 : -1];
}
namespace dr173 { // dr173: yes
int check[('0' + 1 == '1' && '0' + 2 == '2' && '0' + 3 == '3' &&
'0' + 4 == '4' && '0' + 5 == '5' && '0' + 6 == '6' &&
'0' + 7 == '7' && '0' + 8 == '8' && '0' + 9 == '9') ? 1 : -1];
}
// dr174: sup 1012
namespace dr175 { // dr175: yes
struct A {}; // expected-note {{here}}
struct B : private A {}; // expected-note {{constrained by private inheritance}}
struct C : B {
A a; // expected-error {{private}}
dr175::A b;
};
}
namespace dr176 { // dr176: yes
template<typename T> class Y;
template<> class Y<int> {
void f() {
typedef Y A; // expected-note {{here}}
typedef Y<char> A; // expected-error {{different types ('Y<char>' vs 'Y<int>')}}
}
};
template<typename T> struct Base {}; // expected-note 2{{found}}
template<typename T> struct Derived : public Base<T> {
void f() {
typedef typename Derived::template Base<T> A;
typedef typename Derived::Base A;
}
};
template struct Derived<int>;
template<typename T> struct Derived2 : Base<int>, Base<char> {
typename Derived2::Base b; // expected-error {{found in multiple base classes}}
typename Derived2::Base<double> d;
};
template<typename T> class X { // expected-note {{here}}
X *p1;
X<T> *p2;
X<int> *p3;
dr176::X *p4; // expected-error {{requires template arguments}}
};
}
namespace dr177 { // dr177: yes
struct B {};
struct A {
A(A &); // expected-note {{not viable: expects an l-value}}
A(const B &);
};
B b;
A a = b; // expected-error {{no viable constructor copying variable}}
}
namespace dr178 { // dr178: yes
int check[int() == 0 ? 1 : -1];
#if __cplusplus >= 201103L
static_assert(int{} == 0, "");
struct S { int a, b; };
static_assert(S{1}.b == 0, "");
struct T { constexpr T() : n() {} int n; };
static_assert(T().n == 0, "");
struct U : S { constexpr U() : S() {} };
static_assert(U().b == 0, "");
#endif
}
namespace dr179 { // dr179: yes
void f();
int n = &f - &f; // expected-error {{arithmetic on pointers to the function type 'void ()'}}
}
namespace dr180 { // dr180: yes
template<typename T> struct X : T, T::some_base {
X() : T::some_type_that_might_be_T(), T::some_base() {}
friend class T::some_class;
void f() {
enum T::some_enum e;
}
};
}
namespace dr181 { // dr181: yes
namespace X {
template <template X<class T> > struct A { }; // expected-error +{{}}
template <template X<class T> > void f(A<X>) { } // expected-error +{{}}
}
namespace Y {
template <template <class T> class X> struct A { };
template <template <class T> class X> void f(A<X>) { }
}
}
namespace dr182 { // dr182: yes
template <class T> struct C {
void f();
void g();
};
template <class T> void C<T>::f() {}
template <class T> void C<T>::g() {}
class A {
class B {}; // expected-note {{here}}
void f();
};
template void C<A::B>::f();
template <> void C<A::B>::g(); // expected-error {{private}}
void A::f() {
C<B> cb;
cb.f();
}
}
namespace dr183 { // dr183: sup 382
template<typename T> struct A {};
template<typename T> struct B {
typedef int X;
};
template<> struct A<int> {
typename B<int>::X x;
};
}
namespace dr184 { // dr184: yes
template<typename T = float> struct B {};
template<template<typename TT = float> class T> struct A {
void f();
void g();
};
template<template<typename TT> class T> void A<T>::f() { // expected-note {{here}}
T<> t; // expected-error {{too few template arguments}}
}
template<template<typename TT = char> class T> void A<T>::g() {
T<> t;
typedef T<> X;
typedef T<char> X;
}
void h() { A<B>().g(); }
}
// dr185 FIXME: add codegen test
namespace dr187 { // dr187: sup 481
const int Z = 1;
template<int X = Z, int Z = X> struct A;
typedef A<> T;
typedef A<1, 1> T;
}
namespace dr188 { // dr188: yes
char c[10];
int check[sizeof(0, c) == 10 ? 1 : -1];
}
// dr190 FIXME: add codegen test for tbaa
// dr193 FIXME: add codegen test
namespace dr194 { // dr194: yes
struct A {
A();
void A(); // expected-error {{has the same name as its class}} expected-error {{constructor cannot have a return type}}
};
struct B {
void B(); // expected-error {{has the same name as its class}} expected-error {{constructor cannot have a return type}}
B();
};
struct C {
inline explicit C(int) {}
};
}
namespace dr195 { // dr195: yes
void f();
int *p = (int*)&f; // expected-error 0-1{{extension}}
void (*q)() = (void(*)())&p; // expected-error 0-1{{extension}}
}
namespace dr197 { // dr197: yes
char &f(char);
template <class T> void g(T t) {
char &a = f(1);
char &b = f(T(1)); // expected-error {{unrelated type 'int'}}
char &c = f(t); // expected-error {{unrelated type 'int'}}
}
void f(int);
enum E { e };
int &f(E);
void h() {
g('a');
g(2);
g(e); // expected-note {{in instantiation of}}
}
}
namespace dr198 { // dr198: yes
struct A {
int n;
struct B {
int m[sizeof(n)];
#if __cplusplus < 201103L
// expected-error@-2 {{invalid use of non-static data member}}
#endif
int f() { return n; }
// expected-error@-1 {{use of non-static data member 'n' of 'A' from nested type 'B'}}
};
struct C;
struct D;
};
struct A::C {
int m[sizeof(n)];
#if __cplusplus < 201103L
// expected-error@-2 {{invalid use of non-static data member}}
#endif
int f() { return n; }
// expected-error@-1 {{use of non-static data member 'n' of 'A' from nested type 'C'}}
};
struct A::D : A {
int m[sizeof(n)];
#if __cplusplus < 201103L
// expected-error@-2 {{invalid use of non-static data member}}
#endif
int f() { return n; }
};
}
// dr199 FIXME: add codegen test