Louis Dionne 9783f28cbb
[libc++] Format the code base (#74334)
This patch runs clang-format on all of libcxx/include and libcxx/src, in
accordance with the RFC discussed at [1]. Follow-up patches will format
the benchmarks, the test suite and remaining parts of the code. I'm
splitting this one into its own patch so the diff is a bit easier to
review.

This patch was generated with:

   find libcxx/include libcxx/src -type f \
      | grep -v 'module.modulemap.in' \
      | grep -v 'CMakeLists.txt' \
      | grep -v 'README.txt' \
      | grep -v 'libcxx.imp' \
      | grep -v '__config_site.in' \
      | xargs clang-format -i

A Git merge driver is available in libcxx/utils/clang-format-merge-driver.sh
to help resolve merge and rebase issues across these formatting changes.

[1]: https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all
2023-12-18 14:01:33 -05:00

85 lines
3.1 KiB
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 _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_PUSH_MACROS
#include <__undef_macros>
_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<>());
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___ALGORITHM_PUSH_HEAP_H