diff options
author | mikhnenko <[email protected]> | 2023-09-20 11:01:13 +0300 |
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committer | mikhnenko <[email protected]> | 2023-09-20 11:29:08 +0300 |
commit | f5b051f5e09f00265229985ba5fd47aa5c8959ff (patch) | |
tree | 7e11605ad566f09451623a1ac34cc644bae804ab /contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h | |
parent | 8ed995cdfb22a3dfa790b0a6ae7750d9dc85db7b (diff) |
Split libcxx on msvc/other
Diffstat (limited to 'contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h')
-rw-r--r-- | contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h b/contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h new file mode 100644 index 00000000000..66973e082f1 --- /dev/null +++ b/contrib/libs/cxxsupp/libcxxmsvc/include/__algorithm/push_heap.h @@ -0,0 +1,70 @@ +//===----------------------------------------------------------------------===// +// +// 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_PUSH_HEAP_H +#define _LIBCPP___ALGORITHM_PUSH_HEAP_H + +#include <__algorithm/comp.h> +#include <__algorithm/comp_ref_type.h> +#include <__config> +#include <__iterator/iterator_traits.h> +#include <__utility/move.h> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _Compare, class _RandomAccessIterator> +_LIBCPP_CONSTEXPR_AFTER_CXX11 void +__sift_up(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp, + typename iterator_traits<_RandomAccessIterator>::difference_type __len) +{ + typedef typename iterator_traits<_RandomAccessIterator>::value_type value_type; + if (__len > 1) + { + __len = (__len - 2) / 2; + _RandomAccessIterator __ptr = __first + __len; + if (__comp(*__ptr, *--__last)) + { + value_type __t(_VSTD::move(*__last)); + do + { + *__last = _VSTD::move(*__ptr); + __last = __ptr; + if (__len == 0) + break; + __len = (__len - 1) / 2; + __ptr = __first + __len; + } while (__comp(*__ptr, __t)); + *__last = _VSTD::move(__t); + } + } +} + +template <class _RandomAccessIterator, class _Compare> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 +void +push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) +{ + typedef typename __comp_ref_type<_Compare>::type _Comp_ref; + _VSTD::__sift_up<_Comp_ref>(__first, __last, __comp, __last - __first); +} + +template <class _RandomAccessIterator> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 +void +push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) +{ + _VSTD::push_heap(__first, __last, __less<typename iterator_traits<_RandomAccessIterator>::value_type>()); +} + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP___ALGORITHM_PUSH_HEAP_H |