_ismbbalnum, _ismbbalnum_l

Determines whether a particular multibyte character is alpha or numeric.

int _ismbbalnum(
   unsigned int c 
int _ismbbalnum_l(
   unsigned int c 


  • c
    Integer to be tested.

  • locale
    Locale to use.

Return Value

_ismbbalnum returns a nonzero value if the expression:

isalnum || _ismbbkalnum

is nonzero for c, or 0 if it is not.

The version of this function with the _l suffix is identical except that it uses the locale passed in instead of the current locale for its locale-dependent behavior.



Required header





For more compatibility information, see Compatibility in the Introduction.


All versions of the C run-time libraries.

.NET Framework Equivalent

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

See Also


Byte Classification

_ismbb Routines