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Diffstat (limited to 'devel/wasi-libc/files/llvm21/stddef.h')
| -rw-r--r-- | devel/wasi-libc/files/llvm21/stddef.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/devel/wasi-libc/files/llvm21/stddef.h b/devel/wasi-libc/files/llvm21/stddef.h new file mode 100644 index 000000000000..99b275aebf5a --- /dev/null +++ b/devel/wasi-libc/files/llvm21/stddef.h @@ -0,0 +1,139 @@ +/*===---- stddef.h - Basic type definitions --------------------------------=== + * + * 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 + * + *===-----------------------------------------------------------------------=== + */ + +/* + * This header is designed to be included multiple times. If any of the __need_ + * macros are defined, then only that subset of interfaces are provided. This + * can be useful for POSIX headers that need to not expose all of stddef.h, but + * need to use some of its interfaces. Otherwise this header provides all of + * the expected interfaces. + * + * When clang modules are enabled, this header is a textual header to support + * the multiple include behavior. As such, it doesn't directly declare anything + * so that it doesn't add duplicate declarations to all of its includers' + * modules. + */ +#if defined(__MVS__) && __has_include_next(<stddef.h>) +#undef __need_ptrdiff_t +#undef __need_size_t +#undef __need_rsize_t +#undef __need_wchar_t +#undef __need_NULL +#undef __need_nullptr_t +#undef __need_unreachable +#undef __need_max_align_t +#undef __need_offsetof +#undef __need_wint_t +#include <__stddef_header_macro.h> +#include_next <stddef.h> + +#else + +#if !defined(__need_ptrdiff_t) && !defined(__need_size_t) && \ + !defined(__need_rsize_t) && !defined(__need_wchar_t) && \ + !defined(__need_NULL) && !defined(__need_nullptr_t) && \ + !defined(__need_unreachable) && !defined(__need_max_align_t) && \ + !defined(__need_offsetof) && !defined(__need_wint_t) +#define __need_ptrdiff_t +#define __need_size_t +/* ISO9899:2011 7.20 (C11 Annex K): Define rsize_t if __STDC_WANT_LIB_EXT1__ is + * enabled. */ +#if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1 +#define __need_rsize_t +#endif +#define __need_wchar_t +#if !defined(__STDDEF_H) || __has_feature(modules) +/* + * __stddef_null.h is special when building without modules: if __need_NULL is + * set, then it will unconditionally redefine NULL. To avoid stepping on client + * definitions of NULL, __need_NULL should only be set the first time this + * header is included, that is when __STDDEF_H is not defined. However, when + * building with modules, this header is a textual header and needs to + * unconditionally include __stdef_null.h to support multiple submodules + * exporting _Builtin_stddef.null. Take module SM with submodules A and B, whose + * headers both include stddef.h When SM.A builds, __STDDEF_H will be defined. + * When SM.B builds, the definition from SM.A will leak when building without + * local submodule visibility. stddef.h wouldn't include __stddef_null.h, and + * SM.B wouldn't import _Builtin_stddef.null, and SM.B's `export *` wouldn't + * export NULL as expected. When building with modules, always include + * __stddef_null.h so that everything works as expected. + */ +#define __need_NULL +#endif +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \ + defined(__cplusplus) +#define __need_nullptr_t +#endif +#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L +#define __need_unreachable +#endif +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ + (defined(__cplusplus) && __cplusplus >= 201103L) +#define __need_max_align_t +#endif +#define __need_offsetof +/* wint_t is provided by <wchar.h> and not <stddef.h>. It's here + * for compatibility, but must be explicitly requested. Therefore + * __need_wint_t is intentionally not defined here. */ +#include <__stddef_header_macro.h> +#endif + +#if defined(__need_ptrdiff_t) +#include <__stddef_ptrdiff_t.h> +#undef __need_ptrdiff_t +#endif /* defined(__need_ptrdiff_t) */ + +#if defined(__need_size_t) +#include <__stddef_size_t.h> +#undef __need_size_t +#endif /*defined(__need_size_t) */ + +#if defined(__need_rsize_t) +#include <__stddef_rsize_t.h> +#undef __need_rsize_t +#endif /* defined(__need_rsize_t) */ + +#if defined(__need_wchar_t) +#include <__stddef_wchar_t.h> +#undef __need_wchar_t +#endif /* defined(__need_wchar_t) */ + +#if defined(__need_NULL) +#include <__stddef_null.h> +#undef __need_NULL +#endif /* defined(__need_NULL) */ + +#if defined(__need_nullptr_t) +#include <__stddef_nullptr_t.h> +#undef __need_nullptr_t +#endif /* defined(__need_nullptr_t) */ + +#if defined(__need_unreachable) +#include <__stddef_unreachable.h> +#undef __need_unreachable +#endif /* defined(__need_unreachable) */ + +#if defined(__need_max_align_t) +#include <__stddef_max_align_t.h> +#undef __need_max_align_t +#endif /* defined(__need_max_align_t) */ + +#if defined(__need_offsetof) +#include <__stddef_offsetof.h> +#undef __need_offsetof +#endif /* defined(__need_offsetof) */ + +/* Some C libraries expect to see a wint_t here. Others (notably MinGW) will use +__WINT_TYPE__ directly; accommodate both by requiring __need_wint_t */ +#if defined(__need_wint_t) +#include <__stddef_wint_t.h> +#undef __need_wint_t +#endif /* __need_wint_t */ + +#endif /* __MVS__ */ |