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| 1 | // -*- C++ -*- |
|---|---|
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef _LIBCPP___NUMERIC_TRANSFORM_INCLUSIVE_SCAN_H |
| 11 | #define _LIBCPP___NUMERIC_TRANSFORM_INCLUSIVE_SCAN_H |
| 12 | |
| 13 | #include <__config> |
| 14 | #include <__iterator/iterator_traits.h> |
| 15 | |
| 16 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 17 | # pragma GCC system_header |
| 18 | #endif |
| 19 | |
| 20 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 21 | |
| 22 | #if _LIBCPP_STD_VER >= 17 |
| 23 | |
| 24 | template <class _InputIterator, class _OutputIterator, class _Tp, class _BinaryOp, class _UnaryOp> |
| 25 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator transform_inclusive_scan( |
| 26 | _InputIterator __first, _InputIterator __last, _OutputIterator __result, _BinaryOp __b, _UnaryOp __u, _Tp __init) { |
| 27 | for (; __first != __last; ++__first, (void)++__result) { |
| 28 | __init = __b(__init, __u(*__first)); |
| 29 | *__result = __init; |
| 30 | } |
| 31 | |
| 32 | return __result; |
| 33 | } |
| 34 | |
| 35 | template <class _InputIterator, class _OutputIterator, class _BinaryOp, class _UnaryOp> |
| 36 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator transform_inclusive_scan( |
| 37 | _InputIterator __first, _InputIterator __last, _OutputIterator __result, _BinaryOp __b, _UnaryOp __u) { |
| 38 | if (__first != __last) { |
| 39 | typename iterator_traits<_InputIterator>::value_type __init = __u(*__first); |
| 40 | *__result++ = __init; |
| 41 | if (++__first != __last) |
| 42 | return std::transform_inclusive_scan(__first, __last, __result, __b, __u, __init); |
| 43 | } |
| 44 | |
| 45 | return __result; |
| 46 | } |
| 47 | |
| 48 | #endif // _LIBCPP_STD_VER >= 17 |
| 49 | |
| 50 | _LIBCPP_END_NAMESPACE_STD |
| 51 | |
| 52 | #endif // _LIBCPP___NUMERIC_TRANSFORM_INCLUSIVE_SCAN_H |
| 53 |
Warning: This file is not a C or C++ file. It does not have highlighting.