llvm-capstone/libcxx/include/__algorithm/ranges_generate_n.h
Konstantin Varlamov 25aa29f38a [libc++][ranges][NFC] Consolidate range algorithm checks for returning dangling.
Also simplify the `robust` test files for non-boolean predicates and
omitting `std::invoke`.

Differential Revision: https://reviews.llvm.org/D129741
2022-07-19 20:46:22 -07:00

65 lines
1.9 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_RANGES_GENERATE_N_H
#define _LIBCPP___ALGORITHM_RANGES_GENERATE_N_H
#include <__algorithm/generate_n.h>
#include <__algorithm/make_projected.h>
#include <__concepts/constructible.h>
#include <__concepts/invocable.h>
#include <__config>
#include <__functional/identity.h>
#include <__functional/invoke.h>
#include <__functional/ranges_operations.h>
#include <__iterator/concepts.h>
#include <__iterator/incrementable_traits.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/projected.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__utility/forward.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
_LIBCPP_BEGIN_NAMESPACE_STD
namespace ranges {
namespace __generate_n {
struct __fn {
template <input_or_output_iterator _OutIter, copy_constructible _Func>
requires invocable<_Func&> && indirectly_writable<_OutIter, invoke_result_t<_Func&>>
_LIBCPP_HIDE_FROM_ABI constexpr
_OutIter operator()(_OutIter __first, iter_difference_t<_OutIter> __n, _Func __gen) const {
// TODO: implement
(void)__first; (void)__n; (void)__gen;
return {};
}
};
} // namespace __generate_n
inline namespace __cpo {
inline constexpr auto generate_n = __generate_n::__fn{};
} // namespace __cpo
} // namespace ranges
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
#endif // _LIBCPP___ALGORITHM_RANGES_GENERATE_N_H