1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
3 .\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
4 .\" This is free documentation; you can redistribute it and/or
5 .\" modify it under the terms of the GNU General Public License as
6 .\" published by the Free Software Foundation; either version 2 of
7 .\" the License, or (at your option) any later version.
10 .\" References consulted:
11 .\" GNU glibc-2 source code and manual
12 .\" Dinkumware C library reference http://www.dinkumware.com/
13 .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
16 .TH ISWGRAPH 3 1999-07-25 "GNU" "Linux Programmer's Manual"
18 iswgraph \- test for graphic wide character
21 .B #include <wctype.h>
23 .BI "int iswgraph(wint_t " wc );
28 function is the wide-character equivalent of the
31 It tests whether \fIwc\fP is a wide character
32 belonging to the wide-character class "graph".
34 The wide-character class "graph" is a subclass of the wide-character class
37 Being a subclass of the wide-character class "print",
38 the wide-character class
39 "graph" is disjoint from the wide-character class "cntrl".
41 The wide-character class "graph" is disjoint from the wide-character class
42 "space" and therefore also disjoint from its subclass "blank".
43 .\" Note: UNIX98 (susv2/xbd/locale.html) says that "graph" and "space" may
44 .\" have characters in common, except U+0020. But C99 (ISO/IEC 9899:1999
45 .\" section 7.25.2.1.10) says that "space" and "graph" are disjoint.
47 The wide-character class "graph" contains all the wide characters from the
48 wide-character class "print" except the space character.
50 the wide-character classes "alnum" and "punct".
54 function returns nonzero
55 if \fIwc\fP is a wide character
56 belonging to the wide-character class "graph".
57 Otherwise it returns zero.