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

6       iswpunct - test for punctuation or symbolic wide character
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SYNOPSIS

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

14       The  iswpunct()  function  is  the wide-character equivalent of the is‐
15       punct(3) function.  It tests whether wc is a wide  character  belonging
16       to the wide-character class "punct".
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18       The  wide-character  class  "punct" is a subclass of the wide-character
19       class "graph", and therefore also  a  subclass  of  the  wide-character
20       class "print".
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22       The  wide-character  class  "punct" is disjoint from the wide-character
23       class "alnum" and therefore also disjoint from its subclasses  "alpha",
24       "upper", "lower", "digit", "xdigit".
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26       Being  a subclass of the wide-character class "print", the wide-charac‐
27       ter class "punct" is disjoint from the wide-character class "cntrl".
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29       Being a subclass of the wide-character class "graph", the  wide-charac‐
30       ter class "punct" is disjoint from the wide-character class "space" and
31       its subclass "blank".
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RETURN VALUE

34       The iswpunct() function returns nonzero if wc is a  wide-character  be‐
35       longing  to  the  wide-character  class "punct".  Otherwise, it returns
36       zero.
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ATTRIBUTES

39       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
40       tributes(7).
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42       ┌─────────────────────────────────────┬───────────────┬────────────────┐
43       │Interface                            │ Attribute     │ Value          │
44       ├─────────────────────────────────────┼───────────────┼────────────────┤
45       │iswpunct()                           │ Thread safety │ MT-Safe locale │
46       └─────────────────────────────────────┴───────────────┴────────────────┘
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CONFORMING TO

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

52       The behavior of iswpunct() depends on the LC_CTYPE category of the cur‐
53       rent locale.
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55       This function's name is a misnomer when dealing  with  Unicode  charac‐
56       ters,  because  the wide-character class "punct" contains both punctua‐
57       tion characters and symbol (math, currency, etc.) characters.
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SEE ALSO

60       ispunct(3), iswctype(3)
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COLOPHON

63       This page is part of release 5.13 of the Linux  man-pages  project.   A
64       description  of  the project, information about reporting bugs, and the
65       latest    version    of    this    page,    can     be     found     at
66       https://www.kernel.org/doc/man-pages/.
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70GNU                               2021-03-22                       ISWPUNCT(3)
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