Integer Limits
Microsoft-specific
The limits for integer types are listed in the following table. Preprocessor macros for these limits are also defined when you include the standard header file <climits>.
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) |
LLONG_MIN |
Minimum value for a variable of type long long |
-9223372036854775808 |
LLONG_MAX |
Maximum value for a variable of type long long |
9223372036854775807 |
ULLONG_MAX |
Maximum value for a variable of type unsigned long long |
18446744073709551615 (0xffffffffffffffff) |
If a value exceeds the largest integer representation, the Microsoft compiler generates an error.