Next: , Previous: iswxdigit, Up: Ctype

3.28 iswctype, iswctype_l—extensible wide-character test

Synopsis 

     #include <wctype.h>
     int iswctype(wint_t c, wctype_t desc);
     
     #include <wctype.h>
     int iswctype_l(wint_t c, wctype_t desc, locale_t locale);

Description
iswctype is a function which classifies wide-character values using the wide-character test specified by desc.

iswctype_l is like iswctype but performs the check based on the locale specified by the locale object locale. If locale is LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
Returns
iswctype, iswctype_l return non-zero if and only if c matches the test specified by desc. If desc is unknown, zero is returned.
Portability
iswctype is C99. iswctype_l is POSIX-1.2008.

No supporting OS subroutines are required.