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iswcntrl (3)
  • iswcntrl (3) ( FreeBSD man: Библиотечные вызовы )
  • iswcntrl (3) ( Русские man: Библиотечные вызовы )
  • >> iswcntrl (3) ( Linux man: Библиотечные вызовы )
  • iswcntrl (3) ( POSIX man: Библиотечные вызовы )
  •  

    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) 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 current locale.  

    SEE ALSO

    iscntrl(3), iswctype(3)  

    COLOPHON

    This page is part of release 3.14 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/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    CONFORMING TO
    NOTES
    SEE ALSO
    COLOPHON


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