Retro68/gcc/libstdc++-v3/include/pstl/memory_impl.h
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

57 lines
2.0 KiB
C++

// -*- C++ -*-
//===-- memory_impl.h -----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef __PSTL_memory_impl_H
#define __PSTL_memory_impl_H
#include <iterator>
#include "unseq_backend_simd.h"
namespace __pstl
{
namespace __internal
{
//------------------------------------------------------------------------
// uninitialized_move
//------------------------------------------------------------------------
template <class _ForwardIterator, class _OutputIterator>
_OutputIterator
__brick_uninitialized_move(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
/*vector=*/std::false_type) noexcept
{
typedef typename std::iterator_traits<_OutputIterator>::value_type _ValueType2;
for (; __first != __last; ++__first, ++__result)
{
::new (std::addressof(*__result)) _ValueType2(std::move(*__first));
}
return __result;
}
template <class _ForwardIterator, class _OutputIterator>
_OutputIterator
__brick_uninitialized_move(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
/*vector=*/std::true_type) noexcept
{
typedef typename std::iterator_traits<_OutputIterator>::value_type __ValueType2;
typedef typename std::iterator_traits<_ForwardIterator>::reference _ReferenceType1;
typedef typename std::iterator_traits<_OutputIterator>::reference _ReferenceType2;
return __unseq_backend::__simd_walk_2(
__first, __last - __first, __result,
[](_ReferenceType1 __x, _ReferenceType2 __y) { ::new (std::addressof(__y)) __ValueType2(std::move(__x)); });
}
} // namespace __internal
} // namespace __pstl
#endif /* __PSTL_memory_impl_H */