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__iscsym, __iscsymf

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int__iscsym(intc**);**

int__iscsymf(intc**);**

Routine Required Header Compatibility
__iscsym <ctype.h> Win 95, Win NT
__iscsymf <ctype.h> Win 95, Win NT

For additional compatibility information, see Compatibility in the Introduction.

Libraries

LIBC.LIB Single thread static library, retail version
LIBCMT.LIB Multithread static library, retail version
MSVCRT.LIB Import library for MSVCRT.DLL, retail version

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.

Parameter

c

Integer to test

Character Classification Routines |  Locale Routines |  is, isw Function Overview