iswblank man page on YellowDog

iswblank man page on YellowDog

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

NAME
       iswblank - test for whitespace wide character

SYNOPSIS
       #include <wctype.h>

       int iswblank(wint_t wc);

DESCRIPTION
       The  iswblank()	function  is  the  wide-character  equivalent  of  the
       isblank() function. It tests whether wc is a wide  character  belonging
       to the wide character class "blank".

       The  wide  character  class "blank" is a subclass of the wide character
       class "space".

       Being a subclass of the wide character class "space", the wide  charac‐
       ter class "blank" is disjoint from the wide character class "graph" and
       therefore also disjoint from its subclasses "alnum", "alpha",  "upper",
       "lower", "digit", "xdigit", "punct".

       The  wide  character  class  "blank" always contains at least the space
       character and the control character '\t'.

RETURN VALUE
       The iswblank() function returns non-zero if  wc	is  a  wide  character
       belonging  to  the  wide	 character class "blank". Otherwise it returns
       zero.

CONFORMING TO
       This function is a GNU extension.

SEE ALSO
       isblank(3), iswctype(3)

NOTES
       The behaviour of iswblank() depends on the  LC_CTYPE  category  of  the
       current locale.

GNU				  1999-07-25			   ISWBLANK(3)

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