self_def.h

来自「一个小型C语言编译器」· C头文件 代码 · 共 44 行

#ifndef    __SELF_DEF_H__
#define    __SELF_DEF_H__



/* limits */
#ifdef __STDC__
#include <limits.h>
#include <float.h>
#else
/*
 * The magnitudes of the values below are greater than or equal to the minimum
 * permitted by the standard (see Appendix D) and are typical for byte-addressed
 * machines with 32-bit integers. These values are suitable for bootstrapping.
 */
#define CHAR_BIT        8
#define MB_LEN_MAX      1

#define UCHAR_MAX       0xff
#define USHRT_MAX       0xffff
#define UINT_MAX        0xffffffff
#define ULONG_MAX       0xffffffffL

#define CHAR_MAX        SCHAR_MAX
#define SCHAR_MAX       0x7f
#define SHRT_MAX        0x7fff
#define INT_MAX         0x7fffffff
#define LONG_MAX        0x7fffffffL

#define CHAR_MIN        SCHAR_MIN
#define SCHAR_MIN       (-SCHAR_MAX-1)
#define SHRT_MIN        (-SHRT_MAX-1)
#define INT_MIN         (-INT_MAX-1)
#define LONG_MIN        (-LONG_MAX-1)

#define FLT_MAX         1e37
#define DBL_MAX         1e37
#endif





#endif//__SELF_DEF_H__