limits.h

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#ifndef _LIMITS_H_
#define _LIMITS_H_

/* Minimum and maximum values a `signed char' can hold.  */
#define SCHAR_MIN       (-128)
#define SCHAR_MAX       127

/* Maximum value an `unsigned char' can hold.  (Minimum is 0.)  */
#define UCHAR_MAX       255

/* Minimum and maximum values a `char' can hold.  */
#define CHAR_MIN        SCHAR_MIN
#define CHAR_MAX        SCHAR_MAX

/* Minimum and maximum values a `signed short int' can hold.  */
#define SHRT_MIN        (-32768)
#define SHRT_MAX        32767

/* Maximum value an `unsigned short int' can hold.  (Minimum is 0.)  */
#define USHRT_MAX       65535

/* Minimum and maximum values a `signed int' can hold.  */
#define INT_MIN (-INT_MAX - 1)
#define INT_MAX 2147483647

/* Maximum value an `unsigned int' can hold.  (Minimum is 0.)  */
#define UINT_MAX        4294967295U

/* Minimum and maximum values a `signed long int' can hold.  */
#define LONG_MAX        2147483647L
#define LONG_MIN        (-LONG_MAX - 1L)

/* Maximum value an `unsigned long int' can hold.  (Minimum is 0.)  */
#define ULONG_MAX       4294967295UL

#endif