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.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\" %%%LICENSE_END
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.\"
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.\" References consulted:
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.\" GNU glibc-2 source code and manual
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.\" Dinkumware C library reference http://www.dinkumware.com/
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.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
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.\" ISO/IEC 9899:1999
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.\"
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.TH ISWPUNCT 3 2015-08-08 "GNU" "Linux Programmer's Manual"
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.SH NAME
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iswpunct \- test for punctuation or symbolic wide character
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.SH SYNOPSIS
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.nf
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.B #include <wctype.h>
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.PP
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.BI "int iswpunct(wint_t " wc );
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.fi
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.SH DESCRIPTION
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The
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.BR iswpunct ()
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function is the wide-character equivalent of the
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.BR ispunct (3)
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function.
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It tests whether
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.I wc
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is a wide character
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belonging to the wide-character class "punct".
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.PP
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The wide-character class "punct" is a subclass of the wide-character class
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"graph", and therefore also a subclass of the wide-character class "print".
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.PP
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The wide-character class "punct" is disjoint from the wide-character class
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"alnum" and therefore also disjoint from its subclasses "alpha", "upper",
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"lower", "digit", "xdigit".
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.PP
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Being a subclass of the wide-character class "print",
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the wide-character class
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"punct" is disjoint from the wide-character class "cntrl".
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.PP
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Being a subclass of the wide-character class "graph",
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the wide-character class
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"punct" is disjoint from the wide-character class "space" and its subclass
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"blank".
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.SH RETURN VALUE
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The
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.BR iswpunct ()
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function returns nonzero
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if
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.I wc
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is a wide-character
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belonging to the wide-character class "punct".
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Otherwise, it returns zero.
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.SH ATTRIBUTES
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For an explanation of the terms used in this section, see
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.BR attributes (7).
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.TS
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allbox;
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lb lb lb
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l l l.
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Interface Attribute Value
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T{
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.BR iswpunct ()
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T} Thread safety MT-Safe locale
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.TE
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.SH CONFORMING TO
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POSIX.1-2001, POSIX.1-2008, C99.
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.SH NOTES
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The behavior of
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.BR iswpunct ()
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depends on the
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.B LC_CTYPE
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category of the
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current locale.
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.PP
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This function's name is a misnomer when dealing with Unicode characters,
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because the wide-character class "punct" contains both punctuation characters
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and symbol (math, currency, etc.) characters.
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.SH SEE ALSO
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.BR ispunct (3),
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.BR iswctype (3)
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.SH COLOPHON
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This page is part of release 4.15 of the Linux
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.I man-pages
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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\%https://www.kernel.org/doc/man\-pages/.
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