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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support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case.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.
59 lines
1.6 KiB
C++
Vendored
59 lines
1.6 KiB
C++
Vendored
// -*- 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_CSTDALIGN
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#define _LIBCPP_CSTDALIGN
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/*
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cstdalign synopsis
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Macros:
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__alignas_is_defined
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__alignof_is_defined
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*/
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#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
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# include <__cxx03/__config>
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#else
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# include <__config>
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// <stdalign.h> is not provided by libc++
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# if __has_include(<stdalign.h>)
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# include <stdalign.h>
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# ifdef _LIBCPP_STDALIGN_H
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# error "If libc++ starts defining <stdalign.h>, the __has_include check should move to libc++'s <stdalign.h>"
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# endif
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# endif
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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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# undef __alignas_is_defined
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# define __alignas_is_defined 1
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# undef __alignof_is_defined
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# define __alignof_is_defined 1
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# if _LIBCPP_STD_VER >= 20
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using __standard_header_cstdalign _LIBCPP_DEPRECATED_("removed in C++20.") _LIBCPP_NODEBUG = void;
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using __use_standard_header_cstdalign _LIBCPP_NODEBUG = __standard_header_cstdalign;
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# elif _LIBCPP_STD_VER >= 17
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using __standard_header_cstdalign _LIBCPP_DEPRECATED _LIBCPP_NODEBUG = void;
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using __use_standard_header_cstdalign _LIBCPP_NODEBUG = __standard_header_cstdalign;
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# endif
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#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
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#endif // _LIBCPP_CSTDALIGN
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