Standard C Library Functions                         iswalpha(3C)



NAME
     iswalpha,  isenglish,  isideogram,  isnumber,   isphonogram,
     isspecial, iswalnum, iswascii, iswblank, iswcntrl, iswdigit,
     iswgraph, iswlower, iswprint, iswpunct, iswspace,  iswupper,
     iswxdigit - wide-character code classification functions

SYNOPSIS
     #include 
     #include 

     int iswalpha(wintt wc);


     int isenglish(wintt wc);


     int isideogram(wintt wc);


     int isnumber(wintt wc);


     int isphonogram(wintt wc);


     int isspecial(wintt wc);


     int iswalnum(wintt wc);


     int iswascii(wintt wc);


     int iswblank(wintt wc);


     int iswcntrl(wintt wc);


     int iswdigit(wintt wc);


     int iswgraph(wintt wc);


     int iswlower(wintt wc);


     int iswprint(wintt wc);





SunOS 5.11          Last change: 19 Apr 2004                    1






Standard C Library Functions                         iswalpha(3C)



     int iswpunct(wintt wc);


     int iswspace(wintt wc);


     int iswupper(wintt wc);


     int iswxdigit(wintt wc);


DESCRIPTION
     These functions test whether wc  is  a  wide-character  code
     representing  a  character  of a particular class defined in
     the LCTYPE category of the current locale.


     In all cases, wc is a wintt, 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 values, the behavior is
     undefined.

     iswalpha(wc)       Tests whether wc is a wide-character code
                        representing a character of class "alpha"
                        in the program's current locale.


     isenglish(wc)      Tests whether wc is a wide-character code
                        representing  an English language charac-
                        ter, excluding ASCI characters.


     isideogram(wc)     Tests whether wc is a wide-character code
                        representing   an   ideographic  language
                        character, excluding ASCI characters.


     isnumber(wc)       Tests whether wc is a wide-character code
                        representing digit [0-9], excluding ASCI
                        characters.


     isphonogram(wc)    Tests whether wc is a wide-character code
                        representing  a phonetic language charac-
                        ter, excluding ASCI characters.


     isspecial(wc)      Tests whether wc is a wide-character code
                        representing  a  special language charac-
                        ter, excluding ASCI characters.



SunOS 5.11          Last change: 19 Apr 2004                    2






Standard C Library Functions                         iswalpha(3C)



     iswalnum(wc)       Tests whether wc is a wide-character code
                        representing a character of class "alpha"
                        or  "digit"  in  the  program's   current
                        locale.


     iswascii(wc)       Tests whether wc is a wide-character code
                        representing an ASCI character.


     iswblank(wc)       Tests whether wc is a wide-character code
                        representing a character of class "blank"
                        in the  program's  current  locale.  This
                        function is not available to applications
                        conforming to standards prior  to  SUSv3.
                        See standards(5).


     iswlower(wc)       Tests whether wc is a wide-character code
                        representing a character of class "lower"
                        in the program's current locale.


     iswcntrl(wc)       Tests whether wc is a wide-character code
                        representing a character of class "cntrl"
                        in the program's current locale.


     iswdigit(wc)       Tests whether wc is a wide-character code
                        representing a character of class "digit"
                        in the program's current locale.


     iswgraph(wc)       Tests whether wc is a wide-character code
                        representing a character of class "graph"
                        in the program's current locale.


     iswprint(wc)       Tests whether wc is a wide-character code
                        representing a character of class "print"
                        in the program's current locale.


     iswpunct(wc)       Tests whether wc is a wide-character code
                        representing a character of class "punct"
                        in the program's current locale.


     iswspace(wc)       Tests whether wc is a wide-character code
                        representing a character of class "space"
                        in the program's current locale.




SunOS 5.11          Last change: 19 Apr 2004                    3






Standard C Library Functions                         iswalpha(3C)



     iswupper(wc)       Tests whether wc is a wide-character code
                        representing a character of class "upper"
                        in the program's current locale.


     iswxdigit(wc)      Tests whether wc is a wide-character code
                        representing  a  character of class "xdi-
                        git" in the program's current locale.


ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
     ATRIBUTE TYPE               ATRIBUTE VALUE             
    
     CSI                          Enabled                     
    
     Interface Stability          See  below.                 
    
     MT-Level                     MT-Safe with exceptions     
    



     The iswalpha(), iswalnum(), iswblank(),  iswcntrl(),  iswdi-
     git(),   iswgraph(),   iswlower(),  iswprint(),  iswpunct(),
     iswspace(), iswupper(), and iswxdigit() functions are  Stan-
     dard.

SEE ALSO
     localedef(1),  setlocale(3C),  stdio(3C),  ascii(5),  attri-
     butes(5), standards(5)



















SunOS 5.11          Last change: 19 Apr 2004                    4