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