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iswdigit

iswdigit

Numeric Character Test

Portability: ISO/ANSI conforming, UNIX compatible

SYNOPSIS
DESCRIPTION
RETURN VALUE
CAUTION
RELATED FUNCTIONS
SEE ALSO

#include <wctype.h>

int iswdigit(wint_t wc)

DESCRIPTION

iswdigit tests whether its wide character argument wc is a decimal-digit character.

RETURN VALUE

iswdigit returns 0 if the wide character is not a decimal digit, or a nonzero value if it is a decimal digit. If the argument is WEOF, 0 is returned.

The effect of iswdigit on a non-wide character argument other than WEOF is undefined. Do not assume that iswdigit returns either a 0 or a 1.

RELATED FUNCTIONS

iswxdigit

Function Categories.
Chapter 10, "Localization" in SAS/C Library Reference, Volume 2.

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