Integer Limits
Microsoft Specific
The limits for integer types are listed in the following table. These limits are also defined in the standard header file LIMITS.H.
Limits on Integer Constants
Constant |
Meaning |
Value |
|---|---|---|
CHAR_BIT |
Number of bits in the smallest variable that is not a bit field. |
8 |
SCHAR_MIN |
Minimum value for a variable of type signed char. |
–128 |
SCHAR_MAX |
Maximum value for a variable of type signed char. |
127 |
UCHAR_MAX |
Maximum value for a variable of type unsigned char. |
255 (0xff) |
CHAR_MIN |
Minimum value for a variable of type char. |
–128; 0 if /J option used |
CHAR_MAX |
Maximum value for a variable of type char. |
127; 255 if /J option used |
MB_LEN_MAX |
Maximum number of bytes in a multicharacter constant. |
5 |
SHRT_MIN |
Minimum value for a variable of type short. |
–32768 |
SHRT_MAX |
Maximum value for a variable of type short. |
32767 |
USHRT_MAX |
Maximum value for a variable of type unsigned short. |
65535 (0xffff) |
INT_MIN |
Minimum value for a variable of type int. |
–2147483648 |
INT_MAX |
Maximum value for a variable of type int. |
2147483647 |
UINT_MAX |
Maximum value for a variable of type unsigned int. |
4294967295 (0xffffffff) |
LONG_MIN |
Minimum value for a variable of type long. |
–2147483648 |
LONG_MAX |
Maximum value for a variable of type long. |
2147483647 |
ULONG_MAX |
Maximum value for a variable of type unsigned long. |
4294967295 (0xffffffff) |
_I64_MIN |
Minimum value for a variable of type __int64 |
-9223372036854775808 |
_I64_MAX |
Maximum value for a variable of type __int64 |
9223372036854775807 |
_UI64_MAX |
Maximum value for a variable of type unsigned __int64 |
18446744073709551615 (0xffffffffffffffff) |
If a value exceeds the largest integer representation, the Microsoft compiler generates an error.