isdigit, iswdigit (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 a decimal-digit character.
int isdigit( int c);int iswdigit( wint_t c);
Parameters
- c
Integer to test.
Return Values
isdigit returns a non-zero value if c is a decimal digit (0 – 9).
iswdigit returns a non-zero value if c is a wide character corresponding to a decimal-digit character.
Each routine returns 0 if c does not satisfy the test condition.
The result of the test condition for the isdigit function depends on the LC_CTYPE category setting of the current locale.
For iswdigit, the result of the test condition is independent of locale.
Generic-Text Routine Mappings
| TCHAR.H Routine | _UNICODE Defined |
|---|---|
| _istdigit | iswdigit |
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
isalnum | __isascii | iscntrl | ispunct | isspace
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