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//===----------------------------------------------------------------------===//
//
// 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 _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H
#define _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H
#include <__algorithm/pstl_backend.h>
#include <__config>
#include <__iterator/cpp17_iterator_concepts.h>
#include <__type_traits/enable_if.h>
#include <__type_traits/is_execution_policy.h>
#include <__type_traits/remove_cvref.h>
#include <__utility/move.h>
#include <optional>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _ExecutionPolicy,
class _ForwardIterator,
class _ForwardOutIterator,
class _UnaryOperation,
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI optional<__remove_cvref_t<_ForwardOutIterator>>
__transform(_ExecutionPolicy&&,
_ForwardIterator&& __first,
_ForwardIterator&& __last,
_ForwardOutIterator&& __result,
_UnaryOperation&& __op) noexcept {
using _Backend = typename __select_backend<_RawPolicy>::type;
return std::__pstl_transform<_RawPolicy>(
_Backend{}, std::move(__first), std::move(__last), std::move(__result), std::move(__op));
}
template <class _ExecutionPolicy,
class _ForwardIterator,
class _ForwardOutIterator,
class _UnaryOperation,
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator transform(
_ExecutionPolicy&& __policy,
_ForwardIterator __first,
_ForwardIterator __last,
_ForwardOutIterator __result,
_UnaryOperation __op) {
_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator);
_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardOutIterator);
_LIBCPP_REQUIRE_CPP17_OUTPUT_ITERATOR(_ForwardOutIterator, decltype(__op(*__first)));
auto __res = std::__transform(__policy, std::move(__first), std::move(__last), std::move(__result), std::move(__op));
if (!__res)
std::__throw_bad_alloc();
return *std::move(__res);
}
template <class _ExecutionPolicy,
class _ForwardIterator1,
class _ForwardIterator2,
class _ForwardOutIterator,
class _BinaryOperation,
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
_LIBCPP_HIDE_FROM_ABI optional<__remove_cvref_t<_ForwardOutIterator>>
__transform(_ExecutionPolicy&&,
_ForwardIterator1&& __first1,
_ForwardIterator1&& __last1,
_ForwardIterator2&& __first2,
_ForwardOutIterator&& __result,
_BinaryOperation&& __op) noexcept {
using _Backend = typename __select_backend<_RawPolicy>::type;
return std::__pstl_transform<_RawPolicy>(
_Backend{}, std::move(__first1), std::move(__last1), std::move(__first2), std::move(__result), std::move(__op));
}
template <class _ExecutionPolicy,
class _ForwardIterator1,
class _ForwardIterator2,
class _ForwardOutIterator,
class _BinaryOperation,
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator transform(
_ExecutionPolicy&& __policy,
_ForwardIterator1 __first1,
_ForwardIterator1 __last1,
_ForwardIterator2 __first2,
_ForwardOutIterator __result,
_BinaryOperation __op) {
_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator1);
_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator2);
_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardOutIterator);
_LIBCPP_REQUIRE_CPP17_OUTPUT_ITERATOR(_ForwardOutIterator, decltype(__op(*__first1, *__first2)));
auto __res = std::__transform(
__policy, std::move(__first1), std::move(__last1), std::move(__first2), std::move(__result), std::move(__op));
if (!__res)
std::__throw_bad_alloc();
return *std::move(__res);
}
_LIBCPP_END_NAMESPACE_STD
#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
_LIBCPP_POP_MACROS
#endif // _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H
|
