2950283ddd
Libc++'s own <stddef.h> is complicated by the need to handle various platform-specific macros and to support duplicate inclusion. In reality, we only need to add a declaration of nullptr_t to it, so we can simply include the underlying <stddef.h> outside of our guards to let it handle re-inclusion itself.
45 lines
1.0 KiB
C++
45 lines
1.0 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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/*
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stddef.h synopsis
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Macros:
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offsetof(type,member-designator)
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NULL
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Types:
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ptrdiff_t
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size_t
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max_align_t // C++11
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nullptr_t
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*/
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#include <__config>
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// Note: This include is outside of header guards because we sometimes get included multiple times
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// with different defines and the underlying <stddef.h> will know how to deal with that.
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#include_next <stddef.h>
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#ifndef _LIBCPP_STDDEF_H
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# define _LIBCPP_STDDEF_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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# ifdef __cplusplus
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typedef decltype(nullptr) nullptr_t;
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# endif
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#endif // _LIBCPP_STDDEF_H
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