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1 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
2 | .\" | |
89e3ffe9 | 3 | .\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA) |
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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. | |
fe382ebf | 8 | .\" %%%LICENSE_END |
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9 | .\" |
10 | .\" References consulted: | |
11 | .\" GNU glibc-2 source code and manual | |
12 | .\" Dinkumware C library reference http://www.dinkumware.com/ | |
008f1ecc | 13 | .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |
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14 | .\" ISO/IEC 9899:1999 |
15 | .\" | |
460495ca | 16 | .TH ISWGRAPH 3 2015-08-08 "GNU" "Linux Programmer's Manual" |
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17 | .SH NAME |
18 | iswgraph \- test for graphic wide character | |
19 | .SH SYNOPSIS | |
20 | .nf | |
21 | .B #include <wctype.h> | |
68e4db0a | 22 | .PP |
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23 | .BI "int iswgraph(wint_t " wc ); |
24 | .fi | |
25 | .SH DESCRIPTION | |
60a90ecd MK |
26 | The |
27 | .BR iswgraph () | |
28 | function is the wide-character equivalent of the | |
29 | .BR isgraph (3) | |
30 | function. | |
35cfd378 MK |
31 | It tests whether |
32 | .I wc | |
33 | is a wide character | |
d0f17b57 | 34 | belonging to the wide-character class "graph". |
fea681da | 35 | .PP |
d0f17b57 | 36 | The wide-character class "graph" is a subclass of the wide-character class |
fea681da MK |
37 | "print". |
38 | .PP | |
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39 | Being a subclass of the wide-character class "print", |
40 | the wide-character class | |
41 | "graph" is disjoint from the wide-character class "cntrl". | |
fea681da | 42 | .PP |
d0f17b57 | 43 | The wide-character class "graph" is disjoint from the wide-character class |
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44 | "space" and therefore also disjoint from its subclass "blank". |
45 | .\" Note: UNIX98 (susv2/xbd/locale.html) says that "graph" and "space" may | |
68e1685c | 46 | .\" have characters in common, except U+0020. But C99 (ISO/IEC 9899:1999 |
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47 | .\" section 7.25.2.1.10) says that "space" and "graph" are disjoint. |
48 | .PP | |
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49 | The wide-character class "graph" contains all the wide characters from the |
50 | wide-character class "print" except the space character. | |
1c44bd5b | 51 | It therefore contains |
d0f17b57 | 52 | the wide-character classes "alnum" and "punct". |
47297adb | 53 | .SH RETURN VALUE |
60a90ecd MK |
54 | The |
55 | .BR iswgraph () | |
c7094399 | 56 | function returns nonzero |
35cfd378 MK |
57 | if |
58 | .I wc | |
59 | is a wide character | |
d0f17b57 | 60 | belonging to the wide-character class "graph". |
2b9b829d | 61 | Otherwise, it returns zero. |
2bc1d9d5 PH |
62 | .SH ATTRIBUTES |
63 | For an explanation of the terms used in this section, see | |
64 | .BR attributes (7). | |
65 | .TS | |
66 | allbox; | |
67 | lb lb lb | |
68 | l l l. | |
69 | Interface Attribute Value | |
70 | T{ | |
71 | .BR iswgraph () | |
72 | T} Thread safety MT-Safe locale | |
73 | .TE | |
47297adb | 74 | .SH CONFORMING TO |
714fa4b2 | 75 | POSIX.1-2001, POSIX.1-2008, C99. |
fea681da | 76 | .SH NOTES |
d9bfdb9c | 77 | The behavior of |
60a90ecd | 78 | .BR iswgraph () |
1274071a MK |
79 | depends on the |
80 | .B LC_CTYPE | |
81 | category of the | |
fea681da | 82 | current locale. |
47297adb | 83 | .SH SEE ALSO |
e37e3282 MK |
84 | .BR isgraph (3), |
85 | .BR iswctype (3) |