limits.h

#ifndef _LIMITS
#define _LIMITS
 
#define CHAR_BIT 8
 
#define SCHAR_MAX ((signed char)(((unsigned char)1 << (sizeof(signed char)*8 - 1)) - 1))
#define SCHAR_MIN (-SCHAR_MAX - 1)
#define UCHAR_MAX ((unsigned char)~0U)
 
#define SHRT_MAX ((short)(((unsigned short)1 << (sizeof(short)*8 - 1)) - 1))
#define SHRT_MIN (-SHRT_MAX - 1)
#define USHRT_MAX ((unsigned short)~0U)
 
#define INT_MAX ((int)(((unsigned int)1 << (sizeof(int)*8 - 1)) - 1))
#define INT_MIN (-INT_MAX - 1)
#define UINT_MAX ((unsigned int)~0U)
 
#define LONG_MAX ((long)(((unsigned long)1UL << (sizeof(long)*8 - 1)) - 1))
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX ((unsigned long)~0UL)
 
#define LLONG_MAX ((long long)(((unsigned long long)1ULL << (sizeof(long long)*8 - 1)) - 1))
#define LLONG_MIN (-LLONG_MAX - 1)
#define ULLONG_MAX ((unsigned long long)~0ULL)
 
#define CHAR_MIN SCHAR_MIN
#define CHAR_MAX SCHAR_MAX
 
#endif