iswalpha(3) - phpMan

Command: man perldoc info search(apropos)  


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 isalpha(3) func-
       tion.  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-character class
       "alpha" is disjoint from the wide-character class "cntrl".

       Being a subclass of the wide-character  class  "graph",  the  wide-character  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-character  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.

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

SEE ALSO
       isalpha(3), iswctype(3)

COLOPHON
       This page is part of release 3.22 of the Linux man-pages project.  A description of
       the  project, and information about reporting bugs, can be found at http://www.ker-
       nel.org/doc/man-pages/.



GNU                               1999-07-25                       ISWALPHA(3)

Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2018-01-24 03:59 @127.0.0.1 CrawledBy CCBot/2.0 (http://commoncrawl.org/faq/)
Valid XHTML 1.0!Valid CSS!