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// Copyright (C) 2019-2023 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/>.
// { dg-do compile { target c++20 } }
#include <concepts>
static_assert( std::movable<int> );
static_assert( std::movable<int*> );
static_assert( ! std::movable<int&> );
static_assert( ! std::movable<void> );
static_assert( ! std::movable<void()> );
static_assert( ! std::movable<void() noexcept> );
static_assert( ! std::movable<void() const> );
struct Trivial { };
static_assert( std::movable<Trivial> );
struct NotTrivial
{
NotTrivial(int) { }
NotTrivial(NotTrivial&&) { }
NotTrivial& operator=(NotTrivial&&) { return *this; }
~NotTrivial() { }
};
static_assert( std::movable<NotTrivial> );
namespace N1
{
struct Immovable
{
Immovable() = default;
Immovable(Immovable&&) = delete;
};
}
static_assert( ! std::movable<N1::Immovable> );
namespace N2
{
struct Swappable
{
Swappable() = default;
Swappable(Swappable&&) = delete;
Swappable& operator=(Swappable&&) = default;
friend void swap(Swappable&, Swappable&) { }
};
}
static_assert( ! std::movable<N2::Swappable> );
struct NotAssignable
{
NotAssignable() = default;
NotAssignable(NotAssignable&&) = default;
NotAssignable& operator=(NotAssignable&&) = delete;
friend void swap(NotAssignable&, NotAssignable&) { }
};
static_assert( ! std::movable<NotAssignable> );
struct NotSwappable
{
NotSwappable() = default;
NotSwappable(NotSwappable&&) = default;
NotSwappable& operator=(NotSwappable&&) = default;
};
void swap(NotSwappable&, NotSwappable&) = delete;
static_assert( std::movable<NotSwappable> ); // ranges::swap still works!
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