stddef.h

来自「tiny c 编译器,小型的C 编译工具.」· C头文件 代码 · 共 27 行

#ifndef _STDDEF_H
#define _STDDEF_H

#define NULL ((void *)0)
typedef __SIZE_TYPE__ size_t;
typedef __WCHAR_TYPE__ wchar_t;
typedef __PTRDIFF_TYPE__ ptrdiff_t;
#define offsetof(type, field) ((size_t) &((type *)0)->field)

/* need to do that because of glibc 2.1 bug (should have a way to test
   presence of 'long long' without __GNUC__, or TCC should define
   __GNUC__ ? */
#if !defined(__int8_t_defined) && !defined(__dietlibc__)
#define __int8_t_defined
typedef char int8_t;
typedef short int int16_t;
typedef int int32_t;
typedef long long int int64_t;
#endif

#ifdef __i386__
void *_alloca(size_t);
#define alloca _alloca
#endif

#endif