_ismbcalnum, _ismbcalnum_l, _ismbcalpha, _ismbcalpha_, _ismbcdigit, _ismbcdigit_l
Checks whether a multibyte character is an alphanumeric, alpha, or digit character.
int _ismbcalnum ( unsigned int c ); int _ismbcalnum_l ( unsigned int c, _locale_t locale ); int _ismbcalpha ( unsigned int c ); int _ismbcalpha_l ( unsigned int c, _locale_t locale ); int _ismbcdigit ( unsigned int c ); int _ismbcdigit_l ( unsigned int c, _locale_t locale );
Each of these routines tests a given multibyte character for a given condition.
The versions of these functions with the _l suffix are identical except that they use the locale passed in instead of the current locale for their locale-dependent behavior. For more information, see Locale.
Routine | Test condition | Code page 932 example |
|---|---|---|
_ismbcalnum,_ismbcalnum_l | Alphanumeric | Returns nonzero if and only if c is a single-byte representation of an ASCII English letter: See examples for _ismbcdigit and _ismbcalpha. |
_ismbcalpha,_ismbcalpha_l | Alphabetic | Returns nonzero if and only if c is a single-byte representation of an ASCII English letter: 0x41<=c<=0x5A or 0x61<=c<=0x7A; or a katakana letter: 0xA6<=c<=0xDF. |
_ismbcdigit,_ismbcdigit | Digit | Returns nonzero if and only if c is a single-byte representation of an ASCII digit: 0x30<=c<=0x39. |
Routine | Required header |
|---|---|
_ismbcalnum,_ismbcalnum_l | <mbstring.h> |
_ismbcalpha,_ismbcalpha_l | <mbstring.h> |
_ismbcdigit,_ismbcdigit_l | <mbstring.h> |
For more compatibility information, see Compatibility in the Introduction.
For _ismbcalnum: Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
