_ismbcalnum, _ismbcalpha, _ismbcdigit
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_ismbcalnum, _ismbcalpha, _ismbcdigit

int _ismbcalnum(
   unsigned int c 
);
int _ismbcalpha(
   unsigned int c 
);
int _ismbcdigit(
   unsigned int c 
);

Parameter

c
Character to be tested.

Return Value

Each of these routines returns a nonzero value if the character satisfies the test condition or 0 if it does not. If c<= 255 and there is a corresponding _ismbb routine (for example, _ismbcalnum corresponds to _ismbbalnum), the result is the return value of the corresponding _ismbb routine.

Remarks

Each of these routines tests a given multibyte character for a given condition.

Routine Test condition Code page 932 example
_ismbcalnum 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 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 Digit Returns nonzero if and only if c is a single-byte representation of an ASCII digit: 0x30<=c<=0x39.

Requirements

Routine Required header Compatibility
_ismbcalnum <mbstring.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_ismbcalpha <mbstring.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_ismbcdigit <mbstring.h> Win 98, Win Me, Win NT, Win 2000, Win XP

For additional compatibility information, see Compatibility in the Introduction.

Libraries

All versions of the C run-time libraries.

See Also

Character Classification Routines | _ismbc Function Overview | is, isw Function Overview | _ismbb Routines | Run-Time Routines and .NET Framework Equivalents

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