// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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_NUMERIC_FWD_H
#define _PSTL_NUMERIC_FWD_H
#include <type_traits>
#include <utility>
#include "pstl_config.h"
_PSTL_HIDE_FROM_ABI_PUSH
namespace __pstl
{
namespace __internal
{
//------------------------------------------------------------------------
// transform_reduce (version with two binary functions, according to draft N4659)
//------------------------------------------------------------------------
template <class _RandomAccessIterator1, class _RandomAccessIterator2, class _Tp, class _BinaryOperation1,
class _BinaryOperation2>
_Tp __brick_transform_reduce(_RandomAccessIterator1, _RandomAccessIterator1, _RandomAccessIterator2, _Tp,
_BinaryOperation1, _BinaryOperation2,
/*__is_vector=*/std::true_type) noexcept;
template <class _ForwardIterator1, class _ForwardIterator2, class _Tp, class _BinaryOperation1, class _BinaryOperation2>
_Tp __brick_transform_reduce(_ForwardIterator1, _ForwardIterator1, _ForwardIterator2, _Tp, _BinaryOperation1,
_BinaryOperation2,
/*__is_vector=*/std::false_type) noexcept;
template <class _Tag, class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp,
class _BinaryOperation1, class _BinaryOperation2>
_Tp
__pattern_transform_reduce(_Tag, _ExecutionPolicy&&, _ForwardIterator1, _ForwardIterator1, _ForwardIterator2, _Tp,
_BinaryOperation1, _BinaryOperation2) noexcept;
template <class _IsVector, class _ExecutionPolicy, class _RandomAccessIterator1, class _RandomAccessIterator2,
class _Tp, class _BinaryOperation1, class _BinaryOperation2>
_Tp
__pattern_transform_reduce(__parallel_tag<_IsVector>, _ExecutionPolicy&&, _RandomAccessIterator1,
_RandomAccessIterator1, _RandomAccessIterator2, _Tp, _BinaryOperation1, _BinaryOperation2);
//------------------------------------------------------------------------
// transform_reduce (version with unary and binary functions)
//------------------------------------------------------------------------
template <class _RandomAccessIterator, class _Tp, class _UnaryOperation, class _BinaryOperation>
_Tp __brick_transform_reduce(_RandomAccessIterator, _RandomAccessIterator, _Tp, _BinaryOperation, _UnaryOperation,
/*is_vector=*/std::true_type) noexcept;
template <class _ForwardIterator, class _Tp, class _BinaryOperation, class _UnaryOperation>
_Tp __brick_transform_reduce(_ForwardIterator, _ForwardIterator, _Tp, _BinaryOperation, _UnaryOperation,
/*is_vector=*/std::false_type) noexcept;
template <class _Tag, class _ExecutionPolicy, class _ForwardIterator, class _Tp, class _BinaryOperation,
class _UnaryOperation>
_Tp
__pattern_transform_reduce(_Tag, _ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _Tp, _BinaryOperation,
_UnaryOperation) noexcept;
template <class _IsVector, class _ExecutionPolicy, class _RandomAccessIterator, class _Tp, class _BinaryOperation,
class _UnaryOperation>
_Tp
__pattern_transform_reduce(__parallel_tag<_IsVector>, _ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator,
_Tp, _BinaryOperation, _UnaryOperation);
//------------------------------------------------------------------------
// transform_exclusive_scan
//
// walk3 evaluates f(x,y,z) for (x,y,z) drawn from [first1,last1), [first2,...), [first3,...)
//------------------------------------------------------------------------
template <class _ForwardIterator, class _OutputIterator, class _UnaryOperation, class _Tp, class _BinaryOperation>
std::pair<_OutputIterator, _Tp> __brick_transform_scan(_ForwardIterator, _ForwardIterator, _OutputIterator,
_UnaryOperation, _Tp, _BinaryOperation,
/*Inclusive*/ std::false_type) noexcept;
template <class _RandomAccessIterator, class _OutputIterator, class _UnaryOperation, class _Tp, class _BinaryOperation>
std::pair<_OutputIterator, _Tp> __brick_transform_scan(_RandomAccessIterator, _RandomAccessIterator, _OutputIterator,
_UnaryOperation, _Tp, _BinaryOperation,
/*Inclusive*/ std::true_type) noexcept;
template <class _Tag, class _ExecutionPolicy, class _ForwardIterator, class _OutputIterator, class _UnaryOperation,
class _Tp, class _BinaryOperation, class _Inclusive>
_OutputIterator
__pattern_transform_scan(_Tag, _ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _OutputIterator, _UnaryOperation,
_Tp, _BinaryOperation, _Inclusive) noexcept;
template <class _IsVector, class _ExecutionPolicy, class _RandomAccessIterator, class _OutputIterator,
class _UnaryOperation, class _Tp, class _BinaryOperation, class _Inclusive>
typename std::enable_if<!std::is_floating_point<_Tp>::value, _OutputIterator>::type
__pattern_transform_scan(__parallel_tag<_IsVector> __tag, _ExecutionPolicy&&, _RandomAccessIterator,
_RandomAccessIterator, _OutputIterator, _UnaryOperation, _Tp, _BinaryOperation, _Inclusive);
template <class _IsVector, class _ExecutionPolicy, class _RandomAccessIterator, class _OutputIterator,
class _UnaryOperation, class _Tp, class _BinaryOperation, class _Inclusive>
typename std::enable_if<std::is_floating_point<_Tp>::value, _OutputIterator>::type
__pattern_transform_scan(__parallel_tag<_IsVector>, _ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator,
_OutputIterator, _UnaryOperation, _Tp, _BinaryOperation, _Inclusive);
//------------------------------------------------------------------------
// adjacent_difference
//------------------------------------------------------------------------
template <class _ForwardIterator, class _OutputIterator, class _BinaryOperation>
_OutputIterator __brick_adjacent_difference(_ForwardIterator, _ForwardIterator, _OutputIterator, _BinaryOperation,
/*is_vector*/ std::false_type) noexcept;
template <class _RandomAccessIterator, class _OutputIterator, class _BinaryOperation>
_OutputIterator __brick_adjacent_difference(_RandomAccessIterator, _RandomAccessIterator, _OutputIterator,
_BinaryOperation,
/*is_vector*/ std::true_type) noexcept;
template <class _Tag, class _ExecutionPolicy, class _ForwardIterator, class _OutputIterator, class _BinaryOperation>
_OutputIterator
__pattern_adjacent_difference(_Tag, _ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _OutputIterator,
_BinaryOperation) noexcept;
template <class _IsVector, class _ExecutionPolicy, class _RandomAccessIterator, class _OutputIterator,
class _BinaryOperation>
_OutputIterator
__pattern_adjacent_difference(__parallel_tag<_IsVector>, _ExecutionPolicy&&, _RandomAccessIterator,
_RandomAccessIterator, _OutputIterator, _BinaryOperation);
} // namespace __internal
} // namespace __pstl
_PSTL_HIDE_FROM_ABI_POP
#endif /* _PSTL_NUMERIC_FWD_H */
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