NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

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

NAME         top

       iswcntrl - test for control wide character

SYNOPSIS         top

       #include <wctype.h>

       int iswcntrl(wint_t wc);

DESCRIPTION         top

       The iswcntrl() function is the wide-character equivalent of the iscntrl(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         top

       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         top

       C99.

NOTES         top

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

SEE ALSO         top

       iscntrl(3), iswctype(3)

COLOPHON         top

       This page is part of release 3.23 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)