//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <map> // map() // noexcept( // is_nothrow_default_constructible<allocator_type>::value && // is_nothrow_default_constructible<key_compare>::value && // is_nothrow_copy_constructible<key_compare>::value); // This tests a conforming extension #include <map> #include <cassert> #include "MoveOnly.h" #include "test_allocator.h" template <class T> struct some_comp { typedef T value_type; some_comp(); }; int main() { #if __has_feature(cxx_noexcept) { typedef std::map<MoveOnly, MoveOnly> C; static_assert(std::is_nothrow_default_constructible<C>::value, ""); } { typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, test_allocator<MoveOnly>> C; static_assert(std::is_nothrow_default_constructible<C>::value, ""); } { typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, other_allocator<MoveOnly>> C; static_assert(!std::is_nothrow_default_constructible<C>::value, ""); } { typedef std::map<MoveOnly, MoveOnly, some_comp<MoveOnly>> C; static_assert(!std::is_nothrow_default_constructible<C>::value, ""); } #endif }