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iswpunct(3) — Linux manual page

NAME \|LIBRARY \|SYNOPSIS \|DESCRIPTION \|RETURN VALUE \|ATTRIBUTES \|STANDARDS \|HISTORY \|NOTES \|SEE ALSO \|COLOPHON

iswpunct(3)              Library Functions Manualiswpunct(3)

NAME top

       iswpunct - test for punctuation or symbolic wide character

LIBRARY top

       Standard C library (libc,-lc)

SYNOPSIS top

#include <wctype.h>int iswpunct(wint_twc);

DESCRIPTION top

       Theiswpunct() function is the wide-character equivalent of theispunct(3) function.  It tests whetherwc is a wide character       belonging to the wide-character class "punct".       The wide-character class "punct" is a subclass of the wide-       character class "graph", and therefore also a subclass of the       wide-character class "print".       The wide-character class "punct" is disjoint from the wide-       character class "alnum" and therefore also disjoint from its       subclasses "alpha", "upper", "lower", "digit", "xdigit".       Being a subclass of the wide-character class "print", the wide-       character class "punct" is disjoint from the wide-character class       "cntrl".       Being a subclass of the wide-character class "graph", the wide-       character class "punct" is disjoint from the wide-character class       "space" and its subclass "blank".

RETURN VALUE top

       Theiswpunct() function returns nonzero ifwc is a wide-character       belonging to the wide-character class "punct".  Otherwise, it       returns zero.

ATTRIBUTES top

       For an explanation of the terms used in this section, seeattributes(7).       ┌───────────────────────────────┬───────────────┬────────────────┐       │Interface│Attribute│Value│       ├───────────────────────────────┼───────────────┼────────────────┤       │iswpunct()                    │ Thread safety │ MT-Safe locale │       └───────────────────────────────┴───────────────┴────────────────┘

STANDARDS top

       C11, POSIX.1-2008.

HISTORY top

       POSIX.1-2001, C99.

NOTES top

       The behavior ofiswpunct() depends on theLC_CTYPEcategory of the       current locale.       This function's name is a misnomer when dealing with Unicode       characters, because the wide-character class "punct" contains both       punctuation characters and symbol (math, currency, etc.)       characters.

COLOPHON top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17iswpunct(3)

Pages that refer to this page:isalpha(3), iswctype(3)

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