The limits header defines the characteristics of variable types.
The following values are defined with the #define directive.
These values are implementation-specific, but may not be any lower than what
is given here.
CHAR_BIT 8 |
Number of bits in a byte. |
SCHAR_MIN -127 |
Minimum value for a signed char. |
SCHAR_MAX +127 |
Maximum value for a signed char. |
UCHAR_MAX 255 |
Maximum value for an unsigned char. |
CHAR_MIN |
These define the minimum and maximum values for a char. If a char is
being represented as a signed integer, then their values are the same as
the signed char (SCHAR) values. Otherwise
CHAR_MIN is 0 and CHAR_MAX is the same as
UCHAR_MAX. |
MB_LEN_MAX 1 |
Maximum number of bytes in a multibyte character. |
SHRT_MIN -32767 |
Minimum value for a short int. |
SHRT_MAX +32767 |
Maximum value for a short int. |
USHRT_MAX 65535 |
Maximum value for an unsigned short int. |
INT_MIN -32767 |
Minimum value for an int. |
INT_MAX +32767 |
Maximum value for an int. |
UINT_MAX 65535 |
Maximum value for an unsigned int. |
LONG_MIN -2147483647 |
Minimum value for a long int. |
LONG_MAX +2147483647 |
Maximum value for a long int. |
ULONG_MAX 4294967295 |
Maximum value for an unsigned long int. |