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// { dg-do compile { target c++11 } }
// Copyright (C) 2017-2018 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 <queue>
using std::priority_queue;
using std::vector;
template<typename A>
constexpr bool default_constructible()
{ return std::is_default_constructible<A>::value; }
static_assert(default_constructible<priority_queue<int>>(),
"priority_queue<int>");
struct NonDefaultConstructible : vector<int> {
NonDefaultConstructible(int) { }
};
struct Cmp : std::less<int> {
Cmp(int) { }
};
static_assert(
!default_constructible<priority_queue<int, NonDefaultConstructible>>(),
"priority_queue<int, NonDefaultConstructible>");
static_assert(
!default_constructible<priority_queue<int, NonDefaultConstructible, Cmp>>(),
"priority_queue<int, NonDefaultConstructible, Cmp>");
static_assert(
!default_constructible<priority_queue<int, vector<int>, Cmp>>(),
"priority_queue<int, vector<int>, Cmp>");
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