iswalpha, iswalpha_l—alphabetic wide character testSynopsis
#include <wctype.h> int iswalpha(wint_t c); #include <wctype.h> int iswalpha_l(wint_t c, locale_t locale);
Description
iswalpha is a function which classifies wide-character values that
are alphabetic.
iswalpha_l is like iswalpha 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
iswalpha, iswalpha_l return non-zero if c is an alphabetic
wide character.
Portability
iswalpha is C99.
iswalpha_l is POSIX-1.2008.
No supporting OS subroutines are required.