__iscsym, __iscsymf
Visual Studio .NET 2003
int __iscsym( int c ); int __iscsymf( int c );
Parameter
- c
- Integer to test. c should be in the range of 0-127.
Return Value
__iscsym returns a non-zero value if c is a letter, underscore, or digit. __iscsymf returns a non-zero value if c is a letter or an underscore. Each of these routines returns 0 if c does not satisfy the test condition.
The result of the test condition for the __iscsym function depends on the LC_CTYPE category setting of the current locale; see setlocale for more information. For __iscsymf, the result of the test condition is independent of locale.
Requirements
| Routine | Required header | Compatibility |
|---|---|---|
| __iscsym | <ctype.h> | Win 98, Win Me, Win NT, Win 2000, Win XP |
| __iscsymf | <ctype.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 | Locale Routines | is, isw Function Overview | Run-Time Routines and .NET Framework Equivalents
