Files
clang-p2996/libcxx/include/__ranges/all.h
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

80 lines
2.6 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___RANGES_ALL_H
#define _LIBCPP___RANGES_ALL_H
#include <__config>
#include <__functional/compose.h> // TODO(modules): Those should not be required
#include <__functional/perfect_forward.h> //
#include <__iterator/concepts.h>
#include <__iterator/iterator_traits.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/owning_view.h>
#include <__ranges/range_adaptor.h>
#include <__ranges/ref_view.h>
#include <__type_traits/decay.h>
#include <__utility/auto_cast.h>
#include <__utility/declval.h>
#include <__utility/forward.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 20
namespace ranges::views {
namespace __all {
struct __fn : __range_adaptor_closure<__fn> {
template <class _Tp>
requires ranges::view<decay_t<_Tp>>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const
noexcept(noexcept(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t))))
-> decltype(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t))) {
return _LIBCPP_AUTO_CAST(std::forward<_Tp>(__t));
}
template <class _Tp>
requires(!ranges::view<decay_t<_Tp>>) && requires(_Tp&& __t) { ranges::ref_view{std::forward<_Tp>(__t)}; }
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const
noexcept(noexcept(ranges::ref_view{std::forward<_Tp>(__t)})) {
return ranges::ref_view{std::forward<_Tp>(__t)};
}
template <class _Tp>
requires(
!ranges::view<decay_t<_Tp>> && !requires(_Tp&& __t) { ranges::ref_view{std::forward<_Tp>(__t)}; } &&
requires(_Tp&& __t) { ranges::owning_view{std::forward<_Tp>(__t)}; })
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const
noexcept(noexcept(ranges::owning_view{std::forward<_Tp>(__t)})) {
return ranges::owning_view{std::forward<_Tp>(__t)};
}
};
} // namespace __all
inline namespace __cpo {
inline constexpr auto all = __all::__fn{};
} // namespace __cpo
template <ranges::viewable_range _Range>
using all_t = decltype(views::all(std::declval<_Range>()));
} // namespace ranges::views
#endif // _LIBCPP_STD_VER >= 20
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___RANGES_ALL_H