1ISWBLANK(3)                Linux Programmer's Manual               ISWBLANK(3)
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NAME

6       iswblank - test for whitespace wide character
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SYNOPSIS

9       #include <wctype.h>
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11       int iswblank(wint_t wc);
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DESCRIPTION

14       The  iswblank()  function  is  the  wide-character  equivalent  of  the
15       isblank() function. It tests whether wc is a wide  character  belonging
16       to the wide character class "blank".
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18       The  wide  character  class "blank" is a subclass of the wide character
19       class "space".
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21       Being a subclass of the wide character class "space", the wide  charac‐
22       ter class "blank" is disjoint from the wide character class "graph" and
23       therefore also disjoint from its subclasses "alnum", "alpha",  "upper",
24       "lower", "digit", "xdigit", "punct".
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26       The  wide  character  class  "blank" always contains at least the space
27       character and the control character '\t'.
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RETURN VALUE

30       The iswblank() function returns non-zero if  wc  is  a  wide  character
31       belonging  to  the  wide  character class "blank". Otherwise it returns
32       zero.
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CONFORMING TO

35       This function is a GNU extension.
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SEE ALSO

38       isblank(3), iswctype(3)
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NOTES

41       The behaviour of iswblank() depends on the  LC_CTYPE  category  of  the
42       current locale.
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46GNU                               1999-07-25                       ISWBLANK(3)