1 // Copyright (C) 2018 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 3, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING3. If not see 16 // <http://www.gnu.org/licenses/>. 17 18 // { dg-do compile { target c++11 } } 19 20 #include <vector> 21 22 template <typename T> 23 struct Alloc 24 { 25 using value_type = T; 26 27 T* allocate(unsigned n); 28 void deallocate(T* p, unsigned n); 29 AllocAlloc30 Alloc(int) { } 31 32 template<typename U> AllocAlloc33 Alloc(const Alloc<U>&) { } 34 }; 35 36 template<typename T, typename U> operator ==(Alloc<T>,Alloc<U>)37 bool operator==(Alloc<T>, Alloc<U>) { return true; } 38 template<typename T, typename U> operator !=(Alloc<T>,Alloc<U>)39 bool operator!=(Alloc<T>, Alloc<U>) { return false; } 40 41 constexpr bool b 42 = std::is_default_constructible<std::vector<int, Alloc<int>>>::value; 43