gcc/libstdc++-v3/testsuite/23_containers/stack/requirements/constructible.cc
Jakub Jelinek 8d9254fc8a Update copyright years.
From-SVN: r279813
2020-01-01 12:51:42 +01:00

38 lines
1.3 KiB
C++

// { dg-do compile { target c++11 } }
// Copyright (C) 2017-2020 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// This file tests explicit instantiation of library containers.
#include <stack>
using std::stack;
template<typename A>
constexpr bool default_constructible()
{ return std::is_default_constructible<A>::value; }
static_assert(default_constructible<stack<int>>(), "stack<int>");
struct NonDefaultConstructible : std::deque<int> {
NonDefaultConstructible(int) { }
};
static_assert(!default_constructible<stack<int, NonDefaultConstructible>>(),
"stack<int, NonDefaultConstructible>");