include/stddef.h

   1 #ifndef _STDDEF_H
   2 #define _STDDEF_H
   3
   4 typedef __SIZE_TYPE__ size_t;
   5 typedef __PTRDIFF_TYPE__ ssize_t;
   6 typedef __WCHAR_TYPE__ wchar_t;
   7 typedef __PTRDIFF_TYPE__ ptrdiff_t;
   8 typedef __PTRDIFF_TYPE__ intptr_t;
   9 typedef __SIZE_TYPE__ uintptr_t;
  10
  11 #ifndef __int8_t_defined
  12 #define __int8_t_defined
  13 typedef signed char int8_t;
  14 typedef signed short int int16_t;
  15 typedef signed int int32_t;
  16 typedef signed long long int int64_t;
  17 typedef unsigned char uint8_t;
  18 typedef unsigned short int uint16_t;
  19 typedef unsigned int uint32_t;
  20 typedef unsigned long long int uint64_t;
  21 #endif
  22
  23 #define NULL ((void*)0)
  24 #define offsetof(type, field) ((size_t)&((type *)0)->field)
  25
  26 void *alloca(size_t size);
  27
  28 #endif
  29
  30 /* Older glibc require a wint_t from <stddef.h> (when requested
  31    by __need_wint_t, as otherwise stddef.h isn't allowed to
  32    define this type).   Note that this must be outside the normal
  33    _STDDEF_H guard, so that it works even when we've included the file
  34    already (without requiring wint_t).  Some other libs define _WINT_T
  35    if they've already provided that type, so we can use that as guard.
  36    TCC defines __WINT_TYPE__ for us.  */
  37 #if defined (__need_wint_t)
  38 #ifndef _WINT_T
  39 #define _WINT_T
  40 typedef __WINT_TYPE__ wint_t;
  41 #endif
  42 #undef __need_wint_t
  43 #endif