forked from Lainports/freebsd-ports
84b600fb9f
devel/wasi-libc is now flavourised per supported LLVM version. Each flavour includes/copies the corresponding clang's stdarg.h and stddef.h instead of simply using the latest clang release. Technically upstream dropped support for LLVM < 18, but the commit doing so admittedly operated under an uncertain assumption. LLVM 17 is still supported in these ports for the benefit of Rust and gecko@ ports, which specify LLVM 17 minimum, and to facilitate LTO with that version. LLVM 19 is also supported in this version, with the corresponding ports to be committed separately. Bump PORTREVISION of consumers
133 lines
4.2 KiB
C++
133 lines
4.2 KiB
C++
/*===---- stddef.h - Basic type definitions --------------------------------===
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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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#if !defined(__STDDEF_H) || defined(__need_ptrdiff_t) || \
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defined(__need_size_t) || defined(__need_wchar_t) || \
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defined(__need_NULL) || defined(__need_wint_t)
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#if !defined(__need_ptrdiff_t) && !defined(__need_size_t) && \
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!defined(__need_wchar_t) && !defined(__need_NULL) && \
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!defined(__need_wint_t)
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/* Always define miscellaneous pieces when modules are available. */
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#if !__has_feature(modules)
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#define __STDDEF_H
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#endif
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#define __need_ptrdiff_t
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#define __need_size_t
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#define __need_wchar_t
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#define __need_NULL
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#define __need_STDDEF_H_misc
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/* __need_wint_t is intentionally not defined here. */
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#endif
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#if defined(__need_ptrdiff_t)
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#if !defined(_PTRDIFF_T) || __has_feature(modules)
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/* Always define ptrdiff_t when modules are available. */
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#if !__has_feature(modules)
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#define _PTRDIFF_T
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#endif
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typedef __PTRDIFF_TYPE__ ptrdiff_t;
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#endif
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#undef __need_ptrdiff_t
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#endif /* defined(__need_ptrdiff_t) */
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#if defined(__need_size_t)
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#if !defined(_SIZE_T) || __has_feature(modules)
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/* Always define size_t when modules are available. */
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#if !__has_feature(modules)
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#define _SIZE_T
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#endif
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typedef __SIZE_TYPE__ size_t;
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#endif
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#undef __need_size_t
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#endif /*defined(__need_size_t) */
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#if defined(__need_STDDEF_H_misc)
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/* ISO9899:2011 7.20 (C11 Annex K): Define rsize_t if __STDC_WANT_LIB_EXT1__ is
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* enabled. */
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#if (defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1 && \
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!defined(_RSIZE_T)) || __has_feature(modules)
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/* Always define rsize_t when modules are available. */
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#if !__has_feature(modules)
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#define _RSIZE_T
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#endif
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typedef __SIZE_TYPE__ rsize_t;
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#endif
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#endif /* defined(__need_STDDEF_H_misc) */
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#if defined(__need_wchar_t)
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#if !defined(__cplusplus) || (defined(_MSC_VER) && !_NATIVE_WCHAR_T_DEFINED)
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/* Always define wchar_t when modules are available. */
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#if !defined(_WCHAR_T) || __has_feature(modules)
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#if !__has_feature(modules)
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#define _WCHAR_T
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#if defined(_MSC_EXTENSIONS)
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#define _WCHAR_T_DEFINED
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#endif
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#endif
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typedef __WCHAR_TYPE__ wchar_t;
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#endif
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#endif
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#undef __need_wchar_t
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#endif /* defined(__need_wchar_t) */
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#if defined(__need_NULL)
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#undef NULL
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#ifdef __cplusplus
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# if !defined(__MINGW32__) && !defined(_MSC_VER)
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# define NULL __null
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# else
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# define NULL 0
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# endif
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#else
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# define NULL ((void*)0)
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#endif
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#ifdef __cplusplus
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#if defined(_MSC_EXTENSIONS) && defined(_NATIVE_NULLPTR_SUPPORTED)
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namespace std { typedef decltype(nullptr) nullptr_t; }
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using ::std::nullptr_t;
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#endif
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#endif
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#undef __need_NULL
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#endif /* defined(__need_NULL) */
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/* FIXME: This is using the placeholder dates Clang produces for these macros
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in C2x mode; switch to the correct values once they've been published. */
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#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000L
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typedef typeof(nullptr) nullptr_t;
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#endif /* defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000L */
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#if defined(__need_STDDEF_H_misc) && defined(__STDC_VERSION__) && \
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__STDC_VERSION__ >= 202000L
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#define unreachable() __builtin_unreachable()
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#endif /* defined(__need_STDDEF_H_misc) && >= C23 */
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#if defined(__need_STDDEF_H_misc)
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#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
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(defined(__cplusplus) && __cplusplus >= 201103L)
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#include "__stddef_max_align_t.h"
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#endif
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#define offsetof(t, d) __builtin_offsetof(t, d)
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#undef __need_STDDEF_H_misc
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#endif /* defined(__need_STDDEF_H_misc) */
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/* Some C libraries expect to see a wint_t here. Others (notably MinGW) will use
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__WINT_TYPE__ directly; accommodate both by requiring __need_wint_t */
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#if defined(__need_wint_t)
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/* Always define wint_t when modules are available. */
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#if !defined(_WINT_T) || __has_feature(modules)
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#if !__has_feature(modules)
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#define _WINT_T
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#endif
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typedef __WINT_TYPE__ wint_t;
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#endif
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#undef __need_wint_t
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#endif /* __need_wint_t */
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#endif
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