diff options
Diffstat (limited to 'gnu/gcc2/lib/gstddef.h')
| -rw-r--r-- | gnu/gcc2/lib/gstddef.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/gnu/gcc2/lib/gstddef.h b/gnu/gcc2/lib/gstddef.h new file mode 100644 index 000000000000..f1939e33fff1 --- /dev/null +++ b/gnu/gcc2/lib/gstddef.h @@ -0,0 +1,217 @@ +#ifndef _STDDEF_H +#ifndef _STDDEF_H_ +#ifndef _ANSI_STDDEF_H + +/* Any one of these symbols __need_* means that GNU libc + wants us just to define one data type. So don't define + the symbols that indicate this file's entire job has been done. */ +#if (!defined(__need_wchar_t) && !defined(__need_size_t) \ + && !defined(__need_ptrdiff_t) && !defined(__need_NULL)) +#define _STDDEF_H +#define _STDDEF_H_ +/* snaroff@next.com says the NeXT needs this. */ +#define _ANSI_STDDEF_H +#endif + +#ifndef __sys_stdtypes_h +/* This avoids lossage on SunOS but only if stdtypes.h comes first. + There's no way to win with the other order! Sun lossage. */ + +/* On 4.3bsd-net2, make sure ansi.h is included, so we have + one less case to deal with in the following. */ +#if defined (__BSD_NET2__) || defined (____386BSD____) +#include <machine/ansi.h> +#endif + +/* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are + defined if the corresponding type is *not* defined. */ +#ifdef _ANSI_H_ +#ifndef _SIZE_T_ +#define _SIZE_T +#endif +#ifndef _PTRDIFF_T_ +#define _PTRDIFF_T +#endif +#ifndef _WCHAR_T_ +#define _WCHAR_T +#endif +/* Undef _FOO_T_ if we are supposed to define foo_t. */ +#if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) +#undef _PTRDIFF_T_ +#endif +#if defined (__need_size_t) || defined (_STDDEF_H_) +#undef _SIZE_T_ +#endif +#if defined (__need_wchar_t) || defined (_STDDEF_H_) +#undef _WCHAR_T_ +#endif +#endif /* _ANSI_H_ */ + +/* Sequent's header files use _PTRDIFF_T_ in some conflicting way. + Just ignore it. */ +#if defined (__sequent__) && defined (_PTRDIFF_T_) +#undef _PTRDIFF_T_ +#endif + +/* In case nobody has defined these types, but we aren't running under + GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE__TYPE__, and + __WCHAR_TYPE__ have reasonable values. This can happen if the + parts of GCC is compiled by an older compiler, that actually + include gstddef.h, such as collect2. */ + +/* Signed type of difference of two pointers. */ + +/* Define this type if we are doing the whole job, + or if we want this type in particular. */ +#if defined (_STDDEF_H) || defined (__need_ptrdiff_t) +#ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ +#ifndef _T_PTRDIFF_ +#ifndef _T_PTRDIFF +#ifndef __PTRDIFF_T +#ifndef _PTRDIFF_T_ +#ifndef ___int_ptrdiff_t_h +#ifndef _GCC_PTRDIFF_T +#define _PTRDIFF_T +#define _T_PTRDIFF_ +#define _T_PTRDIFF +#define __PTRDIFF_T +#define _PTRDIFF_T_ +#define ___int_ptrdiff_t_h +#define _GCC_PTRDIFF_T +#ifndef __PTRDIFF_TYPE__ +#define __PTRDIFF_TYPE__ long int +#endif +typedef __PTRDIFF_TYPE__ ptrdiff_t; +#endif /* _GCC_PTRDIFF_T */ +#endif /* ___int_ptrdiff_t_h */ +#endif /* _PTRDIFF_T_ */ +#endif /* __PTRDIFF_T */ +#endif /* _T_PTRDIFF */ +#endif /* _T_PTRDIFF_ */ +#endif /* _PTRDIFF_T */ + +/* If this symbol has done its job, get rid of it. */ +#undef __need_ptrdiff_t + +#endif /* _STDDEF_H or __need_ptrdiff_t. */ + +/* Unsigned type of `sizeof' something. */ + +/* Define this type if we are doing the whole job, + or if we want this type in particular. */ +#if defined (_STDDEF_H) || defined (__need_size_t) +#ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ +#ifndef _SYS_SIZE_T_H +#ifndef _T_SIZE_ +#ifndef _T_SIZE +#ifndef __SIZE_T +#ifndef _SIZE_T_ +#ifndef ___int_size_t_h +#ifndef _GCC_SIZE_T +#ifndef _SIZET_ +#define _SIZE_T +#define _SYS_SIZE_T_H +#define _T_SIZE_ +#define _T_SIZE +#define __SIZE_T +#define _SIZE_T_ +#define ___int_size_t_h +#define _GCC_SIZE_T +#define _SIZET_ +#ifndef __SIZE_TYPE__ +#define __SIZE_TYPE__ long unsigned int +#endif +#if !(defined (__GNUG__) && defined (size_t)) +typedef __SIZE_TYPE__ size_t; +#endif /* !(defined (__GNUG__) && defined (size_t)) */ +#endif /* _SIZET_ */ +#endif /* _GCC_SIZE_T */ +#endif /* ___int_size_t_h */ +#endif /* _SIZE_T_ */ +#endif /* __SIZE_T */ +#endif /* _T_SIZE */ +#endif /* _T_SIZE_ */ +#endif /* _SYS_SIZE_T_H */ +#endif /* _SIZE_T */ +#undef __need_size_t +#endif /* _STDDEF_H or __need_size_t. */ + + +/* Wide character type. + Locale-writers should change this as necessary to + be big enough to hold unique values not between 0 and 127, + and not (wchar_t) -1, for each defined multibyte character. */ + +/* Define this type if we are doing the whole job, + or if we want this type in particular. */ +#if defined (_STDDEF_H) || defined (__need_wchar_t) +#ifndef _WCHAR_T +#ifndef _T_WCHAR_ +#ifndef _T_WCHAR +#ifndef __WCHAR_T +#ifndef _WCHAR_T_ +#ifndef ___int_wchar_t_h +#ifndef _GCC_WCHAR_T +#define _WCHAR_T +#define _T_WCHAR_ +#define _T_WCHAR +#define __WCHAR_T +#define _WCHAR_T_ +#define ___int_wchar_t_h +#define _GCC_WCHAR_T +#ifndef __WCHAR_TYPE__ +#define __WCHAR_TYPE__ int +#endif +#ifdef __GNUG__ +/* In C++, wchar_t is a distinct basic type, + and we can expect __wchar_t to be defined by cc1plus. */ +typedef __wchar_t wchar_t; +#else +/* In C, cpp tells us which type to make an alias for. */ +typedef __WCHAR_TYPE__ wchar_t; +#endif +#endif +#endif +#endif +#endif +#endif +#endif +#endif +#undef __need_wchar_t +#endif /* _STDDEF_H or __need_wchar_t. */ + +/* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc. + are already defined. */ +#ifdef _ANSI_H_ +#ifdef _GCC_PTRDIFF_T +#undef _PTRDIFF_T_ +#endif +#ifdef _GCC_SIZE_T +#undef _SIZE_T_ +#endif +#ifdef _GCC_WCHAR_T +#undef _WCHAR_T_ +#endif +#endif /* _ANSI_H_ */ + +#endif /* __sys_stdtypes_h */ + +/* A null pointer constant. */ + +#if defined (_STDDEF_H) || defined (__need_NULL) +#undef NULL /* in case <stdio.h> has defined it. */ +#define NULL ((void *)0) +#endif /* NULL not defined and <stddef.h> or need NULL. */ +#undef __need_NULL + +#ifdef _STDDEF_H + +/* Offset of member MEMBER in a struct of type TYPE. */ + +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) + +#endif /* _STDDEF_H was defined this time */ + +#endif /* _ANSI_STDDEF_H was not defined before */ +#endif /* _STDDEF_H_ was not defined before */ +#endif /* _STDDEF_H was not defined before */ |