9783f28cbb
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
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___FUNCTIONAL_ALLOCATOR_ARG_T_H
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#define _LIBCPP___FUNCTIONAL_ALLOCATOR_ARG_T_H
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#include <__config>
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#include <__memory/uses_allocator.h>
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#include <__type_traits/integral_constant.h>
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#include <__type_traits/is_constructible.h>
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#include <__type_traits/remove_cvref.h>
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#include <__utility/forward.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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struct _LIBCPP_TEMPLATE_VIS allocator_arg_t {
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explicit allocator_arg_t() = default;
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};
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#if _LIBCPP_STD_VER >= 17
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inline constexpr allocator_arg_t allocator_arg = allocator_arg_t();
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#elif !defined(_LIBCPP_CXX03_LANG)
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constexpr allocator_arg_t allocator_arg = allocator_arg_t();
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#endif
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#ifndef _LIBCPP_CXX03_LANG
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// allocator construction
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template <class _Tp, class _Alloc, class... _Args>
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struct __uses_alloc_ctor_imp {
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typedef _LIBCPP_NODEBUG __remove_cvref_t<_Alloc> _RawAlloc;
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static const bool __ua = uses_allocator<_Tp, _RawAlloc>::value;
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static const bool __ic = is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
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static const int value = __ua ? 2 - __ic : 0;
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};
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template <class _Tp, class _Alloc, class... _Args>
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struct __uses_alloc_ctor : integral_constant<int, __uses_alloc_ctor_imp<_Tp, _Alloc, _Args...>::value> {};
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template <class _Tp, class _Allocator, class... _Args>
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inline _LIBCPP_HIDE_FROM_ABI void
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__user_alloc_construct_impl(integral_constant<int, 0>, _Tp* __storage, const _Allocator&, _Args&&... __args) {
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new (__storage) _Tp(std::forward<_Args>(__args)...);
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}
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// FIXME: This should have a version which takes a non-const alloc.
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template <class _Tp, class _Allocator, class... _Args>
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inline _LIBCPP_HIDE_FROM_ABI void
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__user_alloc_construct_impl(integral_constant<int, 1>, _Tp* __storage, const _Allocator& __a, _Args&&... __args) {
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new (__storage) _Tp(allocator_arg, __a, std::forward<_Args>(__args)...);
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}
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// FIXME: This should have a version which takes a non-const alloc.
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template <class _Tp, class _Allocator, class... _Args>
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inline _LIBCPP_HIDE_FROM_ABI void
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__user_alloc_construct_impl(integral_constant<int, 2>, _Tp* __storage, const _Allocator& __a, _Args&&... __args) {
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new (__storage) _Tp(std::forward<_Args>(__args)..., __a);
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}
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___FUNCTIONAL_ALLOCATOR_ARG_T_H
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