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ISWALPHA(3)		   Linux Programmer's Manual		   ISWALPHA(3)

NAME
       iswalpha - test for alphabetic wide character

SYNOPSIS
       #include <wctype.h>

       int iswalpha(wint_t wc);

DESCRIPTION
       The  iswalpha()	function is the wide-character equivalent of the isal-
       pha() function. It tests whether wc is a wide  character	 belonging  to
       the wide character class "alpha".

       The  wide  character  class "alpha" is a subclass of the wide character
       class "alnum", and therefore also a  subclass  of  the  wide  character
       class "graph" and of the wide character class "print".

       Being  a subclass of the wide character class "print", the wide charac-
       ter class "alpha" is disjoint from the wide character class "cntrl".

       Being a subclass of the wide character class "graph", the wide  charac-
       ter class "alpha" is disjoint from the wide character class "space" and
       its subclass "blank".

       Being a subclass of the wide character class "alnum", the wide  charac-
       ter class "alpha" is disjoint from the wide character class "punct".

       The  wide  character  class "alpha" is disjoint from the wide character
       class "digit".

       The wide character class "alpha" contains the  wide  character  classes
       "upper" and "lower".

       The  wide  character class "alpha" always contains at least the letters
       'A' to 'Z' and 'a' to 'z'.

RETURN VALUE
       The iswalpha() function returns non-zero if  wc	is  a  wide  character
       belonging  to  the  wide	 character class "alpha". Otherwise it returns
       zero.

CONFORMING TO
       C99.

SEE ALSO
       isalpha(3), iswctype(3)

NOTES
       The behaviour of iswalpha() depends on the  LC_CTYPE  category  of  the
       current locale.

GNU				  1999-07-25			   ISWALPHA(3)