isalnum, iswalnum (Windows CE 5.0)
Developing an Application > Microsoft C Run-time Library for Windows CE > Run-time Library Reference
Each routine returns nonzero if c is a particular representation of an alphanumeric character.
int isalnum( int c );int iswalnum( wint_t c);
Parameters
- c
Integer to test.
Return Values
isalnum returns a non-zero value if either isalpha or isdigit is true for c, that is, if c is within the ranges A – Z, a – z, or 0 – 9.
iswalnum returns a non-zero value if either iswalpha or iswdigit is true for c.
Each routine returns 0 if c does not satisfy the test condition.
The result of the test condition for the isalnum function depends on the LC_CTYPE category setting of the current locale.
For iswalnum, the result of the test condition is independent of locale.
Generic-Text Routine Mappings
| TCHAR.H Routine | _UNICODE Defined |
|---|---|
| _istalnum | iswalnum |
For more information about TCHAR.H routines, see Generic Text Mappings.
Requirements
OS Versions: Windows CE 2.0 and later.
Header: stdlib.h.
Link Library: coredll.dll.
See Also
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