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Filename: //usr/include/c++/10///pstl/glue_memory_impl.h

// -*- C++ -*-
//===-- glue_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_GLUE_MEMORY_IMPL_H
#define _PSTL_GLUE_MEMORY_IMPL_H

#include "utils.h"
#include "algorithm_fwd.h"

namespace std
{

// [uninitialized.copy]

template <class _ExecutionPolicy, class _InputIterator, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_copy(_ExecutionPolicy&& __exec, _InputIterator __first, _InputIterator __last, _ForwardIterator __result)
{
    typedef typename iterator_traits<_InputIterator>::value_type _ValueType1;
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType2;
    typedef typename iterator_traits<_InputIterator>::reference _ReferenceType1;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType2;
    using namespace __pstl;

const auto __is_parallel =
        __internal::__is_parallelization_preferred<_ExecutionPolicy, _InputIterator, _ForwardIterator>(__exec);
    const auto __is_vector =
        __internal::__is_vectorization_preferred<_ExecutionPolicy, _InputIterator, _ForwardIterator>(__exec);

return __internal::__invoke_if_else(
        std::integral_constant < bool, std::is_trivial<_ValueType1>::value&& std::is_trivial<_ValueType2>::value > (),
        [&]() {
            return __internal::__pattern_walk2_brick(
                std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
                [__is_vector](_InputIterator __begin, _InputIterator __end, _ForwardIterator __res) {
                    return __internal::__brick_copy(__begin, __end, __res, __is_vector);
                },
                __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk2(std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
                                               [](_ReferenceType1 __val1, _ReferenceType2 __val2) {
                                                   ::new (std::addressof(__val2)) _ValueType2(__val1);
                                               },
                                               __is_vector, __is_parallel);
        });
}

template <class _ExecutionPolicy, class _InputIterator, class _Size, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_copy_n(_ExecutionPolicy&& __exec, _InputIterator __first, _Size __n, _ForwardIterator __result)
{
    typedef typename iterator_traits<_InputIterator>::value_type _ValueType1;
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType2;
    typedef typename iterator_traits<_InputIterator>::reference _ReferenceType1;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType2;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::integral_constant < bool, std::is_trivial<_ValueType1>::value&& std::is_trivial<_ValueType2>::value > (),
        [&]() {
            return __internal::__pattern_walk2_brick_n(
                std::forward<_ExecutionPolicy>(__exec), __first, __n, __result,
                [__is_vector](_InputIterator __begin, _Size __sz, _ForwardIterator __res) {
                    return __internal::__brick_copy_n(__begin, __sz, __res, __is_vector);
                },
                __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk2_n(std::forward<_ExecutionPolicy>(__exec), __first, __n, __result,
                                                 [](_ReferenceType1 __val1, _ReferenceType2 __val2) {
                                                     ::new (std::addressof(__val2)) _ValueType2(__val1);
                                                 },
                                                 __is_vector, __is_parallel);
        });
}

// [uninitialized.move]

template <class _ExecutionPolicy, class _InputIterator, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_move(_ExecutionPolicy&& __exec, _InputIterator __first, _InputIterator __last, _ForwardIterator __result)
{
    typedef typename iterator_traits<_InputIterator>::value_type _ValueType1;
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType2;
    typedef typename iterator_traits<_InputIterator>::reference _ReferenceType1;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType2;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::integral_constant < bool, std::is_trivial<_ValueType1>::value&& std::is_trivial<_ValueType2>::value > (),
        [&]() {
            return __internal::__pattern_walk2_brick(
                std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
                [__is_vector](_InputIterator __begin, _InputIterator __end, _ForwardIterator __res) {
                    return __internal::__brick_copy(__begin, __end, __res, __is_vector);
                },
                __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk2(std::forward<_ExecutionPolicy>(__exec), __first, __last, __result,
                                               [](_ReferenceType1 __val1, _ReferenceType2 __val2) {
                                                   ::new (std::addressof(__val2)) _ValueType2(std::move(__val1));
                                               },
                                               __is_vector, __is_parallel);
        });
}

template <class _ExecutionPolicy, class _InputIterator, class _Size, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_move_n(_ExecutionPolicy&& __exec, _InputIterator __first, _Size __n, _ForwardIterator __result)
{
    typedef typename iterator_traits<_InputIterator>::value_type _ValueType1;
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType2;
    typedef typename iterator_traits<_InputIterator>::reference _ReferenceType1;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType2;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::integral_constant < bool, std::is_trivial<_ValueType1>::value&& std::is_trivial<_ValueType2>::value > (),
        [&]() {
            return __internal::__pattern_walk2_brick_n(
                std::forward<_ExecutionPolicy>(__exec), __first, __n, __result,
                [__is_vector](_InputIterator __begin, _Size __sz, _ForwardIterator __res) {
                    return __internal::__brick_copy_n(__begin, __sz, __res, __is_vector);
                },
                __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk2_n(std::forward<_ExecutionPolicy>(__exec), __first, __n, __result,
                                                 [](_ReferenceType1 __val1, _ReferenceType2 __val2) {
                                                     ::new (std::addressof(__val2)) _ValueType2(std::move(__val1));
                                                 },
                                                 __is_vector, __is_parallel);
        });
}

// [uninitialized.fill]

template <class _ExecutionPolicy, class _ForwardIterator, class _Tp>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void>
uninitialized_fill(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

const auto __is_parallel = __internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator>(__exec);
    const auto __is_vector = __internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator>(__exec);

__internal::__invoke_if_else(std::is_arithmetic<_ValueType>(),
                                 [&]() {
                                     __internal::__pattern_walk_brick(
                                         std::forward<_ExecutionPolicy>(__exec), __first, __last,
                                         [&__value, &__is_vector](_ForwardIterator __begin, _ForwardIterator __end) {
                                             __internal::__brick_fill(__begin, __end, _ValueType(__value), __is_vector);
                                         },
                                         __is_parallel);
                                 },
                                 [&]() {
                                     __internal::__pattern_walk1(std::forward<_ExecutionPolicy>(__exec), __first,
                                                                 __last,
                                                                 [&__value](_ReferenceType __val) {
                                                                     ::new (std::addressof(__val)) _ValueType(__value);
                                                                 },
                                                                 __is_vector, __is_parallel);
                                 });
}

template <class _ExecutionPolicy, class _ForwardIterator, class _Size, class _Tp>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_fill_n(_ExecutionPolicy&& __exec, _ForwardIterator __first, _Size __n, const _Tp& __value)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::is_arithmetic<_ValueType>(),
        [&]() {
            return __internal::__pattern_walk_brick_n(
                std::forward<_ExecutionPolicy>(__exec), __first, __n,
                [&__value, &__is_vector](_ForwardIterator __begin, _Size __count) {
                    return __internal::__brick_fill_n(__begin, __count, _ValueType(__value), __is_vector);
                },
                __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk1_n(
                std::forward<_ExecutionPolicy>(__exec), __first, __n,
                [&__value](_ReferenceType __val) { ::new (std::addressof(__val)) _ValueType(__value); }, __is_vector,
                __is_parallel);
        });
}

// [specialized.destroy]

template <class _ExecutionPolicy, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void>
destroy(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

__internal::__invoke_if_not(std::is_trivially_destructible<_ValueType>(), [&]() {
        __internal::__pattern_walk1(std::forward<_ExecutionPolicy>(__exec), __first, __last,
                                    [](_ReferenceType __val) { __val.~_ValueType(); }, __is_vector, __is_parallel);
    });
}

template <class _ExecutionPolicy, class _ForwardIterator, class _Size>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
destroy_n(_ExecutionPolicy&& __exec, _ForwardIterator __first, _Size __n)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::is_trivially_destructible<_ValueType>(), [&]() { return std::next(__first, __n); },
        [&]() {
            return __internal::__pattern_walk1_n(std::forward<_ExecutionPolicy>(__exec), __first, __n,
                                                 [](_ReferenceType __val) { __val.~_ValueType(); }, __is_vector,
                                                 __is_parallel);
        });
}

// [uninitialized.construct.default]

template <class _ExecutionPolicy, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void>
uninitialized_default_construct(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

__internal::__invoke_if_not(std::is_trivial<_ValueType>(), [&]() {
        __internal::__pattern_walk1(std::forward<_ExecutionPolicy>(__exec), __first, __last,
                                    [](_ReferenceType __val) { ::new (std::addressof(__val)) _ValueType; }, __is_vector,
                                    __is_parallel);
    });
}

template <class _ExecutionPolicy, class _ForwardIterator, class _Size>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_default_construct_n(_ExecutionPolicy&& __exec, _ForwardIterator __first, _Size __n)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

return __internal::__invoke_if_else(std::is_trivial<_ValueType>(), [&]() { return std::next(__first, __n); },
                                        [&]() {
                                            return __internal::__pattern_walk1_n(
                                                std::forward<_ExecutionPolicy>(__exec), __first, __n,
                                                [](_ReferenceType __val) { ::new (std::addressof(__val)) _ValueType; },
                                                __is_vector, __is_parallel);
                                        });
}

// [uninitialized.construct.value]

template <class _ExecutionPolicy, class _ForwardIterator>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void>
uninitialized_value_construct(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

__internal::__invoke_if_else(
        std::is_trivial<_ValueType>(),
        [&]() {
            __internal::__pattern_walk_brick(std::forward<_ExecutionPolicy>(__exec), __first, __last,
                                             [__is_vector](_ForwardIterator __begin, _ForwardIterator __end) {
                                                 __internal::__brick_fill(__begin, __end, _ValueType(), __is_vector);
                                             },
                                             __is_parallel);
        },
        [&]() {
            __internal::__pattern_walk1(std::forward<_ExecutionPolicy>(__exec), __first, __last,
                                        [](_ReferenceType __val) { ::new (std::addressof(__val)) _ValueType(); },
                                        __is_vector, __is_parallel);
        });
}

template <class _ExecutionPolicy, class _ForwardIterator, class _Size>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator>
uninitialized_value_construct_n(_ExecutionPolicy&& __exec, _ForwardIterator __first, _Size __n)
{
    typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
    typedef typename iterator_traits<_ForwardIterator>::reference _ReferenceType;
    using namespace __pstl;

return __internal::__invoke_if_else(
        std::is_trivial<_ValueType>(),
        [&]() {
            return __internal::__pattern_walk_brick_n(std::forward<_ExecutionPolicy>(__exec), __first, __n,
                                                      [__is_vector](_ForwardIterator __begin, _Size __count) {
                                                          return __internal::__brick_fill_n(__begin, __count,
                                                                                            _ValueType(), __is_vector);
                                                      },
                                                      __is_parallel);
        },
        [&]() {
            return __internal::__pattern_walk1_n(
                std::forward<_ExecutionPolicy>(__exec), __first, __n,
                [](_ReferenceType __val) { ::new (std::addressof(__val)) _ValueType(); }, __is_vector, __is_parallel);
        });
}

} // namespace std

#endif /* _PSTL_GLUE_MEMORY_IMPL_H */

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