mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-02 10:42:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Upgrade to 2022-era LLVM LIBCXX

Browse source
This commit is contained in:
Justine Tunney 2024-05-27 02:12:27 -07:00
parent 2f4ca71f26
commit 8e68384e15
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
2078 changed files with 165657 additions and 65010 deletions
Download patch file Download diff file Expand all files Collapse all files

78
third_party/libcxx/__algorithm/push_heap.h vendored Normal file
View file

@ -0,0 +1,78 @@
//===----------------------------------------------------------------------===//
//
// 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 <__algorithm/iterator_operations.h>
#include <__config>
#include <__iterator/iterator_traits.h>
#include <__type_traits/is_copy_assignable.h>
#include <__type_traits/is_copy_constructible.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _AlgPolicy, class _Compare, class _RandomAccessIterator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
void __sift_up(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare&& __comp,
typename iterator_traits<_RandomAccessIterator>::difference_type __len) {
using value_type = typename iterator_traits<_RandomAccessIterator>::value_type;
if (__len > 1) {
__len = (__len - 2) / 2;
_RandomAccessIterator __ptr = __first + __len;
if (__comp(*__ptr, *--__last)) {
value_type __t(_IterOps<_AlgPolicy>::__iter_move(__last));
do {
*__last = _IterOps<_AlgPolicy>::__iter_move(__ptr);
__last = __ptr;
if (__len == 0)
break;
__len = (__len - 1) / 2;
__ptr = __first + __len;
} while (__comp(*__ptr, __t));
*__last = std::move(__t);
}
}
}
template <class _AlgPolicy, class _RandomAccessIterator, class _Compare>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
void __push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare& __comp) {
typename iterator_traits<_RandomAccessIterator>::difference_type __len = __last - __first;
std::__sift_up<_AlgPolicy, __comp_ref_type<_Compare> >(std::move(__first), std::move(__last), __comp, __len);
}
template <class _RandomAccessIterator, class _Compare>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
void push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) {
static_assert(std::is_copy_constructible<_RandomAccessIterator>::value, "Iterators must be copy constructible.");
static_assert(std::is_copy_assignable<_RandomAccessIterator>::value, "Iterators must be copy assignable.");
std::__push_heap<_ClassicAlgPolicy>(std::move(__first), std::move(__last), __comp);
}
template <class _RandomAccessIterator>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
void push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) {
std::push_heap(std::move(__first), std::move(__last),
__less<typename iterator_traits<_RandomAccessIterator>::value_type>());
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ALGORITHM_PUSH_HEAP_H