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

82 lines
2.4 KiB
C++

// -*- 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___ITERATOR_READABLE_TRAITS_H
#define _LIBCPP___ITERATOR_READABLE_TRAITS_H
#include <__concepts/same_as.h>
#include <__config>
#include <__type_traits/conditional.h>
#include <__type_traits/is_array.h>
#include <__type_traits/is_object.h>
#include <__type_traits/is_primary_template.h>
#include <__type_traits/remove_cv.h>
#include <__type_traits/remove_cvref.h>
#include <__type_traits/remove_extent.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 20
// [readable.traits]
template <class>
struct __cond_value_type {};
template <class _Tp>
requires is_object_v<_Tp>
struct __cond_value_type<_Tp> {
using value_type = remove_cv_t<_Tp>;
};
template <class _Tp>
concept __has_member_value_type = requires { typename _Tp::value_type; };
template <class _Tp>
concept __has_member_element_type = requires { typename _Tp::element_type; };
template <class>
struct indirectly_readable_traits {};
template <class _Ip>
requires is_array_v<_Ip>
struct indirectly_readable_traits<_Ip> {
using value_type = remove_cv_t<remove_extent_t<_Ip>>;
};
template <class _Ip>
struct indirectly_readable_traits<const _Ip> : indirectly_readable_traits<_Ip> {};
template <class _Tp>
struct indirectly_readable_traits<_Tp*> : __cond_value_type<_Tp> {};
template <__has_member_value_type _Tp>
struct indirectly_readable_traits<_Tp> : __cond_value_type<typename _Tp::value_type> {};
template <__has_member_element_type _Tp>
struct indirectly_readable_traits<_Tp> : __cond_value_type<typename _Tp::element_type> {};
template <__has_member_value_type _Tp>
requires __has_member_element_type<_Tp>
struct indirectly_readable_traits<_Tp> {};
template <__has_member_value_type _Tp>
requires __has_member_element_type<_Tp> &&
same_as<remove_cv_t<typename _Tp::element_type>, remove_cv_t<typename _Tp::value_type>>
struct indirectly_readable_traits<_Tp> : __cond_value_type<typename _Tp::value_type> {};
#endif // _LIBCPP_STD_VER >= 20
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ITERATOR_READABLE_TRAITS_H