llvm-capstone/libcxx/include/__algorithm/iterator_operations.h
Nikolas Klauser 988682a389 [libc++] Fix std::lower_bound with C++20-hostile iterators
Reviewed By: EricWF, #libc

Spies: sstefan1, libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D127577
2022-06-13 12:19:28 +02:00

48 lines
1.4 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___ALGORIHTM_ITERATOR_OPERATIONS_H
#define _LIBCPP___ALGORIHTM_ITERATOR_OPERATIONS_H
#include <__config>
#include <__iterator/advance.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
struct _RangesIterOps {
static constexpr auto advance = ranges::advance;
static constexpr auto distance = ranges::distance;
};
#endif
struct _StdIterOps {
template <class _Iterator, class _Distance>
_LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11 void advance(_Iterator& __iter, _Distance __count) {
return std::advance(__iter, __count);
}
template <class _Iterator>
_LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
typename iterator_traits<_Iterator>::difference_type distance(_Iterator __first, _Iterator __last) {
return std::distance(__first, __last);
}
};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ALGORIHTM_ITERATOR_OPERATIONS_H