iswcntrl(3) - phpMan

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



NAME
       iswcntrl - test for control wide character

SYNOPSIS
       #include <wctype.h>

       int iswcntrl(wint_t wc);

DESCRIPTION
       The  iswcntrl()  function  is the wide-character equivalent of the iscntrl(3) func-
       tion.  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 current locale.

SEE ALSO
       iscntrl(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                       ISWCNTRL(3)

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