1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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16 .TH ISWPUNCT 3 2021-03-22 "GNU" "Linux Programmer's Manual"
18 iswpunct \- test for punctuation or symbolic wide character
21 .B #include <wctype.h>
23 .BI "int iswpunct(wint_t " wc );
28 function is the wide-character equivalent of the
34 belonging to the wide-character class "punct".
36 The wide-character class "punct" is a subclass of the wide-character class
37 "graph", and therefore also a subclass of the wide-character class "print".
39 The wide-character class "punct" is disjoint from the wide-character class
40 "alnum" and therefore also disjoint from its subclasses "alpha", "upper",
41 "lower", "digit", "xdigit".
43 Being a subclass of the wide-character class "print",
44 the wide-character class
45 "punct" is disjoint from the wide-character class "cntrl".
47 Being a subclass of the wide-character class "graph",
48 the wide-character class
49 "punct" is disjoint from the wide-character class "space" and its subclass
54 function returns nonzero
58 belonging to the wide-character class "punct".
59 Otherwise, it returns zero.
61 For an explanation of the terms used in this section, see
69 Interface Attribute Value
72 T} Thread safety MT-Safe locale
78 POSIX.1-2001, POSIX.1-2008, C99.
87 This function's name is a misnomer when dealing with Unicode characters,
88 because the wide-character class "punct" contains both punctuation characters
89 and symbol (math, currency, etc.) characters.