projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
| 2 | .\" | |
| 3 | .\" This is free documentation; you can redistribute it and/or | |
| 4 | .\" modify it under the terms of the GNU General Public License as | |
| 5 | .\" published by the Free Software Foundation; either version 2 of | |
| 6 | .\" the License, or (at your option) any later version. | |
| 7 | .\" | |
| 8 | .\" References consulted: | |
| 9 | .\" GNU glibc-2 source code and manual | |
| 10 | .\" Dinkumware C library reference http://www.dinkumware.com/ | |
| 008f1ecc | 11 | .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |
| fea681da MK |
12 | .\" ISO/IEC 9899:1999 |
| 13 | .\" | |
| 14 | .TH ISWGRAPH 3 1999-07-25 "GNU" "Linux Programmer's Manual" | |
| 15 | .SH NAME | |
| 16 | iswgraph \- test for graphic wide character | |
| 17 | .SH SYNOPSIS | |
| 18 | .nf | |
| 19 | .B #include <wctype.h> | |
| 20 | .sp | |
| 21 | .BI "int iswgraph(wint_t " wc ); | |
| 22 | .fi | |
| 23 | .SH DESCRIPTION | |
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24 | The |
| 25 | .BR iswgraph () | |
| 26 | function is the wide-character equivalent of the | |
| 27 | .BR isgraph (3) | |
| 28 | function. | |
| c13182ef | 29 | It tests whether \fIwc\fP is a wide character |
| d0f17b57 | 30 | belonging to the wide-character class "graph". |
| fea681da | 31 | .PP |
| d0f17b57 | 32 | The wide-character class "graph" is a subclass of the wide-character class |
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33 | "print". |
| 34 | .PP | |
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35 | Being a subclass of the wide-character class "print", |
| 36 | the wide-character class | |
| 37 | "graph" is disjoint from the wide-character class "cntrl". | |
| fea681da | 38 | .PP |
| d0f17b57 | 39 | The wide-character class "graph" is disjoint from the wide-character class |
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40 | "space" and therefore also disjoint from its subclass "blank". |
| 41 | .\" Note: UNIX98 (susv2/xbd/locale.html) says that "graph" and "space" may | |
| 68e1685c | 42 | .\" have characters in common, except U+0020. But C99 (ISO/IEC 9899:1999 |
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43 | .\" section 7.25.2.1.10) says that "space" and "graph" are disjoint. |
| 44 | .PP | |
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45 | The wide-character class "graph" contains all the wide characters from the |
| 46 | wide-character class "print" except the space character. | |
| 1c44bd5b | 47 | It therefore contains |
| d0f17b57 | 48 | the wide-character classes "alnum" and "punct". |
| 47297adb | 49 | .SH RETURN VALUE |
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50 | The |
| 51 | .BR iswgraph () | |
| c7094399 | 52 | function returns nonzero |
| 1c44bd5b | 53 | if \fIwc\fP is a wide character |
| d0f17b57 | 54 | belonging to the wide-character class "graph". |
| c13182ef | 55 | Otherwise it returns zero. |
| 47297adb | 56 | .SH CONFORMING TO |
| 68e1685c | 57 | C99. |
| fea681da | 58 | .SH NOTES |
| d9bfdb9c | 59 | The behavior of |
| 60a90ecd | 60 | .BR iswgraph () |
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61 | depends on the |
| 62 | .B LC_CTYPE | |
| 63 | category of the | |
| fea681da | 64 | current locale. |
| 47297adb | 65 | .SH SEE ALSO |
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66 | .BR isgraph (3), |
| 67 | .BR iswctype (3) |