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glue_numeric_impl.h
// -*- C++ -*- //===-- glue_numeric_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_NUMERIC_IMPL_H #define _PSTL_GLUE_NUMERIC_IMPL_H #include <functional> #include "utils.h" #include "numeric_fwd.h" namespace std { // [reduce] template <class _ExecutionPolicy, class _ForwardIterator, class _Tp, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _Tp> reduce(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, _Tp __init, _BinaryOperation __binary_op) { return transform_reduce(std::forward<_ExecutionPolicy>(__exec), __first, __last, __init, __binary_op, __pstl::__internal::__no_op()); } template <class _ExecutionPolicy, class _ForwardIterator, class _Tp> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _Tp> reduce(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, _Tp __init) { return transform_reduce(std::forward<_ExecutionPolicy>(__exec), __first, __last, __init, std::plus<_Tp>(), __pstl::__internal::__no_op()); } template <class _ExecutionPolicy, class _ForwardIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, typename iterator_traits<_ForwardIterator>::value_type> reduce(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last) { typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType; return transform_reduce(std::forward<_ExecutionPolicy>(__exec), __first, __last, _ValueType{}, std::plus<_ValueType>(), __pstl::__internal::__no_op()); } // [transform.reduce] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _Tp> transform_reduce(_ExecutionPolicy&& __exec, _ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _Tp __init) { typedef typename iterator_traits<_ForwardIterator1>::value_type _InputType; return __pstl::__internal::__pattern_transform_reduce( std::forward<_ExecutionPolicy>(__exec), __first1, __last1, __first2, __init, std::plus<_InputType>(), std::multiplies<_InputType>(), __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec)); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp, class _BinaryOperation1, class _BinaryOperation2> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _Tp> transform_reduce(_ExecutionPolicy&& __exec, _ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _Tp __init, _BinaryOperation1 __binary_op1, _BinaryOperation2 __binary_op2) { return __pstl::__internal::__pattern_transform_reduce( std::forward<_ExecutionPolicy>(__exec), __first1, __last1, __first2, __init, __binary_op1, __binary_op2, __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec)); } template <class _ExecutionPolicy, class _ForwardIterator, class _Tp, class _BinaryOperation, class _UnaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _Tp> transform_reduce(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, _Tp __init, _BinaryOperation __binary_op, _UnaryOperation __unary_op) { return __pstl::__internal::__pattern_transform_reduce( std::forward<_ExecutionPolicy>(__exec), __first, __last, __init, __binary_op, __unary_op, __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator>(__exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator>(__exec)); } // [exclusive.scan] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> exclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _Tp __init) { using namespace __pstl; return __internal::__pattern_transform_scan( std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __pstl::__internal::__no_op(), __init, std::plus<_Tp>(), /*inclusive=*/std::false_type(), __internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>(__exec), __internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>(__exec)); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> exclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _Tp __init, _BinaryOperation __binary_op) { using namespace __pstl; return __internal::__pattern_transform_scan( std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __pstl::__internal::__no_op(), __init, __binary_op, /*inclusive=*/std::false_type(), __internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>(__exec), __internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>(__exec)); } // [inclusive.scan] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> inclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result) { typedef typename iterator_traits<_ForwardIterator1>::value_type _InputType; return transform_inclusive_scan(std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, std::plus<_InputType>(), __pstl::__internal::__no_op()); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> inclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _BinaryOperation __binary_op) { return transform_inclusive_scan(std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __binary_op, __pstl::__internal::__no_op()); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> inclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _BinaryOperation __binary_op, _Tp __init) { return transform_inclusive_scan(std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __binary_op, __pstl::__internal::__no_op(), __init); } // [transform.exclusive.scan] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Tp, class _BinaryOperation, class _UnaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> transform_exclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _Tp __init, _BinaryOperation __binary_op, _UnaryOperation __unary_op) { return __pstl::__internal::__pattern_transform_scan( std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __unary_op, __init, __binary_op, /*inclusive=*/std::false_type(), __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec)); } // [transform.inclusive.scan] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _BinaryOperation, class _UnaryOperation, class _Tp> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> transform_inclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _BinaryOperation __binary_op, _UnaryOperation __unary_op, _Tp __init) { return __pstl::__internal::__pattern_transform_scan( std::forward<_ExecutionPolicy>(__exec), __first, __last, __result, __unary_op, __init, __binary_op, /*inclusive=*/std::true_type(), __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec)); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _UnaryOperation, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> transform_inclusive_scan(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result, _BinaryOperation __binary_op, _UnaryOperation __unary_op) { if (__first != __last) { auto __tmp = __unary_op(*__first); *__result = __tmp; return transform_inclusive_scan(std::forward<_ExecutionPolicy>(__exec), ++__first, __last, ++__result, __binary_op, __unary_op, __tmp); } else { return __result; } } // [adjacent.difference] template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _BinaryOperation> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> adjacent_difference(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __d_first, _BinaryOperation __op) { if (__first == __last) return __d_first; return __pstl::__internal::__pattern_adjacent_difference( std::forward<_ExecutionPolicy>(__exec), __first, __last, __d_first, __op, __pstl::__internal::__is_vectorization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec), __pstl::__internal::__is_parallelization_preferred<_ExecutionPolicy, _ForwardIterator1, _ForwardIterator2>( __exec)); } template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2> adjacent_difference(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __d_first) { typedef typename iterator_traits<_ForwardIterator1>::value_type _ValueType; return adjacent_difference(std::forward<_ExecutionPolicy>(__exec), __first, __last, __d_first, std::minus<_ValueType>()); } } // namespace std #endif /* _PSTL_GLUE_NUMERIC_IMPL_H_ */