mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 14:23:09 +00:00
156ab87500
See: * https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319 * https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701 We're dropping support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case. As a result of the second change, I had to bring in a subset of the headers from llvm-libc since libc++ now depends on these. Hopefully we can continue to get away with not copying the entirety of llvm-libc.
70 lines
2.2 KiB
C++
Vendored
70 lines
2.2 KiB
C++
Vendored
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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_RANGES_GENERATE_H
|
|
#define _LIBCPP___ALGORITHM_RANGES_GENERATE_H
|
|
|
|
#include <__concepts/constructible.h>
|
|
#include <__concepts/invocable.h>
|
|
#include <__config>
|
|
#include <__iterator/concepts.h>
|
|
#include <__iterator/iterator_traits.h>
|
|
#include <__ranges/access.h>
|
|
#include <__ranges/concepts.h>
|
|
#include <__ranges/dangling.h>
|
|
#include <__type_traits/invoke.h>
|
|
#include <__utility/move.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_PUSH_MACROS
|
|
#include <__undef_macros>
|
|
|
|
#if _LIBCPP_STD_VER >= 20
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
namespace ranges {
|
|
struct __generate {
|
|
template <class _OutIter, class _Sent, class _Func>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr static _OutIter __generate_fn_impl(_OutIter __first, _Sent __last, _Func& __gen) {
|
|
for (; __first != __last; ++__first) {
|
|
*__first = __gen();
|
|
}
|
|
|
|
return __first;
|
|
}
|
|
|
|
template <input_or_output_iterator _OutIter, sentinel_for<_OutIter> _Sent, copy_constructible _Func>
|
|
requires invocable<_Func&> && indirectly_writable<_OutIter, invoke_result_t<_Func&>>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr _OutIter operator()(_OutIter __first, _Sent __last, _Func __gen) const {
|
|
return __generate_fn_impl(std::move(__first), std::move(__last), __gen);
|
|
}
|
|
|
|
template <class _Range, copy_constructible _Func>
|
|
requires invocable<_Func&> && output_range<_Range, invoke_result_t<_Func&>>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range> operator()(_Range&& __range, _Func __gen) const {
|
|
return __generate_fn_impl(ranges::begin(__range), ranges::end(__range), __gen);
|
|
}
|
|
};
|
|
|
|
inline namespace __cpo {
|
|
inline constexpr auto generate = __generate{};
|
|
} // namespace __cpo
|
|
} // namespace ranges
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_STD_VER >= 20
|
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
#endif // _LIBCPP___ALGORITHM_RANGES_GENERATE_H
|