NAME

iswdigit - test for a decimal digit wide-character code

SYNOPSIS

#include <wctype.h>

int iswdigit(wint_t wc);

DESCRIPTION

The iswdigit() function tests whether wc is a wide-character code representing a character of class digit in the program's current locale, see the Locale specification.

In all cases wc is a wint_t, the value of which must be a wide-character code corresponding to a valid character in the current locale or must equal the value of the macro WEOF. If the argument has any other value, the behaviour is undefined.

RETURN VALUE

The iswdigit() function returns non-zero if wc is a decimal digit wide-character code; otherwise it returns 0.

ERRORS

No errors are defined.

EXAMPLES

None.

APPLICATION USAGE

To ensure applications portability, especially across natural languages, only this function and those listed in the SEE ALSO section should be used for classification of wide-character codes.

FUTURE DIRECTIONS

None.

SEE ALSO

iswalnum(), iswalpha(), iswcntrl(), iswgraph(), iswlower(), iswprint(), iswpunct(), iswspace(), iswupper(), iswxdigit(), <wctype.h>, <wchar.h>.