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

6       iswspace - test for whitespace wide character
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SYNOPSIS

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

14       The  iswspace()  function  is the wide-character equivalent of the iss‐
15       pace(3) function.  It tests whether wc is a wide character belonging to
16       the wide-character class "space".
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18       The  wide-character  class  "space" is disjoint from the wide-character
19       class "graph" and therefore also disjoint from its subclasses  "alnum",
20       "alpha", "upper", "lower", "digit", "xdigit", "punct".
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22       The  wide-character  class  "space"  contains  the wide-character class
23       "blank".
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25       The wide-character class "space" always contains  at  least  the  space
26       character and the control characters '\f', '\n', '\r', '\t', '\v'.
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RETURN VALUE

29       The  iswspace()  function returns nonzero if wc is a wide character be‐
30       longing to the wide-character class  "space".   Otherwise,  it  returns
31       zero.
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ATTRIBUTES

34       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
35       tributes(7).
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37       ┌─────────────────────────────────────┬───────────────┬────────────────┐
38       │Interface                            │ Attribute     │ Value          │
39       ├─────────────────────────────────────┼───────────────┼────────────────┤
40       │iswspace()                           │ Thread safety │ MT-Safe locale │
41       └─────────────────────────────────────┴───────────────┴────────────────┘
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CONFORMING TO

44       POSIX.1-2001, POSIX.1-2008, C99.
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NOTES

47       The behavior of iswspace() depends on the LC_CTYPE category of the cur‐
48       rent locale.
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SEE ALSO

51       isspace(3), iswctype(3)
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COLOPHON

54       This  page  is  part of release 5.13 of the Linux man-pages project.  A
55       description of the project, information about reporting bugs,  and  the
56       latest     version     of     this    page,    can    be    found    at
57       https://www.kernel.org/doc/man-pages/.
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61GNU                               2021-03-22                       ISWSPACE(3)
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