Man Iswcntrl en anglais
ISWCNTRL(3)                Linux Programmer's Manual               ISWCNTRL(3)



 

NAME


       iswcntrl - test for control wide character

 

SYNOPSIS


       #include 

       int iswcntrl(wint_t wc);

 

DESCRIPTION






       The  iswcntrl()  function is the wide-character equivalent of the iscn-
       trl(3) function.  It tests whether wc is a wide character belonging  to
       the wide-character class "cntrl".

       The  wide-character  class  "cntrl" is disjoint from the wide-character
       class "print" and therefore also disjoint from its subclasses  "graph",
       "alpha", "upper", "lower", "digit", "xdigit", "punct".

       For  an unsigned char c, iscntrl(c) implies iswcntrl(btowc(c)), but not
       vice versa.

 

RETURN VALUE


       The iswcntrl() function returns non-zero if  wc  is  a  wide  character
       belonging  to  the  wide-character class "cntrl".  Otherwise it returns
       zero.

 

CONFORMING TO


       C99.

 

NOTES


       The behavior of iswcntrl() depends on the LC_CTYPE category of the cur-
       rent locale.

 

SEE ALSO


       iscntrl(3), iswctype(3)

 

COLOPHON


       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



GNU                               1999-07-25                       ISWCNTRL(3)