projects / thirdparty / man-pages.git / blame
| Commit | Line | Data |
|---|---|---|
| fea681da MK |
1 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
| 2 | .\" | |
| fe382ebf | 3 | .\" %%%LICENSE_START(GPLv2+_ONEPARA) |
| fea681da MK |
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 |
| fea681da MK |
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 |
| fea681da MK |
14 | .\" ISO/IEC 9899:1999 |
| 15 | .\" | |
| 16 | .TH ISWALNUM 3 1999-07-25 "GNU" "Linux Programmer's Manual" | |
| 17 | .SH NAME | |
| 18 | iswalnum \- test for alphanumeric wide character | |
| 19 | .SH SYNOPSIS | |
| 20 | .nf | |
| 21 | .B #include <wctype.h> | |
| 22 | .sp | |
| 23 | .BI "int iswalnum(wint_t " wc ); | |
| 24 | .fi | |
| 25 | .SH DESCRIPTION | |
| 60a90ecd MK |
26 | The |
| 27 | .BR iswalnum () | |
| 28 | function is the wide-character equivalent of the | |
| 3a72373c | 29 | .BR isalnum (3) |
| 60a90ecd | 30 | function. |
| c13182ef | 31 | It tests whether \fIwc\fP is a wide character |
| d0f17b57 | 32 | belonging to the wide-character class "alnum". |
| fea681da | 33 | .PP |
| d0f17b57 MK |
34 | The wide-character class "alnum" is a subclass of the wide-character class |
| 35 | "graph", and therefore also a subclass of the wide-character class "print". | |
| fea681da | 36 | .PP |
| d0f17b57 MK |
37 | Being a subclass of the wide-character class "print", |
| 38 | the wide-character class | |
| 39 | "alnum" is disjoint from the wide-character class "cntrl". | |
| fea681da | 40 | .PP |
| d0f17b57 MK |
41 | Being a subclass of the wide-character class "graph", |
| 42 | the wide-character class "alnum" is disjoint from | |
| 43 | the wide-character class "space" and its subclass "blank". | |
| fea681da | 44 | .PP |
| d0f17b57 | 45 | The wide-character class "alnum" is disjoint from the wide-character class |
| fea681da MK |
46 | "punct". |
| 47 | .PP | |
| d0f17b57 | 48 | The wide-character class "alnum" is the union of the wide-character classes |
| c13182ef | 49 | "alpha" and "digit". |
| d0f17b57 | 50 | As such, it also contains the wide-character class |
| fea681da MK |
51 | "xdigit". |
| 52 | .PP | |
| f81fb444 MK |
53 | The wide-character class "alnum" always contains at least the letters \(aqA\(aq |
| 54 | to \(aqZ\(aq, \(aqa\(aq to \(aqz\(aq and the digits \(aq0\(aq to \(aq9\(aq. | |
| 47297adb | 55 | .SH RETURN VALUE |
| 60a90ecd MK |
56 | The |
| 57 | .BR iswalnum () | |
| c7094399 | 58 | function returns nonzero |
| fbe183be | 59 | if \fIwc\fP is a wide character |
| d0f17b57 | 60 | belonging to the wide-character class "alnum". |
| c13182ef | 61 | Otherwise it returns zero. |
| 47297adb | 62 | .SH CONFORMING TO |
| 68e1685c | 63 | C99. |
| fea681da | 64 | .SH NOTES |
| d9bfdb9c | 65 | The behavior of |
| 60a90ecd | 66 | .BR iswalnum () |
| 1274071a MK |
67 | depends on the |
| 68 | .B LC_CTYPE | |
| 69 | category of the | |
| fea681da | 70 | current locale. |
| 47297adb | 71 | .SH SEE ALSO |
| e37e3282 MK |
72 | .BR isalnum (3), |
| 73 | .BR iswctype (3) |