ISWCNTRL(3)

NAME
3.17 `iswcntrl'--control wide character test

SYNOPSIS
     #include <wctype.h>
     int iswcntrl(wint_t C);

DESCRIPTION
`iswcntrl' is a function which classifies wide-character values that are categorized as control characters.

RETURNS
`iswcntrl' returns non-zero if C is a control wide character.

PORTABILITY
`iswcntrl' is C99.
   No supporting OS subroutines are required.

SEE ALSO
iswcntrl is part of the library. The full documentation for is maintained as a Texinfo manual. If info and are properly installed at your site, the command

    info

will give you access to the complete manual.