_ismbbalnum, _ismbbalnum_l

Determines whether a particular multibyte character is alpha or numeric.

Important note Important

This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.

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


Integer to be tested.


Locale to use.

_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.

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