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libstrat: convert to experimental new (super-accurate) sf allocation semantics

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Michael Scire 2021-01-17 07:55:32 -08:00 • committed by SciresM
parent 8314d015f3
commit f06de12bea
149 changed files with 2852 additions and 1746 deletions
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39
libraries/libvapours/include/vapours/util/util_exchange.hpp Normal file
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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
namespace ams::util {
template<typename T, typename U> requires (std::is_assignable<T&, U&&>::value && std::is_copy_constructible<T>::value && std::is_move_constructible<T>::value)
constexpr inline T Exchange(T *ptr, U value) {
AMS_ASSERT(ptr != nullptr);
auto ret = std::move(*ptr);
*ptr = std::move(value);
return ret;
}
template<typename T>
constexpr inline T *Exchange(T **ptr, std::nullptr_t) {
AMS_ASSERT(ptr != nullptr);
auto ret(*ptr);
*ptr = nullptr;
return ret;
}
}