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/ | |
| 11 | .\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html | |
| 12 | .\" ISO/IEC 9899:1999 | |
| 13 | .\" | |
| 14 | .TH ISWXDIGIT 3 1999-07-25 "GNU" "Linux Programmer's Manual" | |
| 15 | .SH NAME | |
| 16 | iswxdigit \- test for hexadecimal digit wide character | |
| 17 | .SH SYNOPSIS | |
| 18 | .nf | |
| 19 | .B #include <wctype.h> | |
| 20 | .sp | |
| 21 | .BI "int iswxdigit(wint_t " wc ); | |
| 22 | .fi | |
| 23 | .SH DESCRIPTION | |
| 60a90ecd MK |
24 | The |
| 25 | .BR iswxdigit () | |
| 26 | function is the wide-character equivalent of the | |
| 27 | .BR isxdigit (3) | |
| 28 | function. | |
| c13182ef | 29 | It tests whether \fIwc\fP is a wide character |
| d0f17b57 | 30 | belonging to the wide-character class "xdigit". |
| fea681da | 31 | .PP |
| d0f17b57 MK |
32 | The wide-character class "xdigit" is a subclass of the wide-character class |
| 33 | "alnum", and therefore also a subclass of the wide-character class "graph" and | |
| 34 | of the wide-character class "print". | |
| fea681da | 35 | .PP |
| d0f17b57 MK |
36 | Being a subclass of the wide-character class "print", the wide-character class |
| 37 | "xdigit" is disjoint from the wide-character class "cntrl". | |
| fea681da | 38 | .PP |
| d0f17b57 MK |
39 | Being a subclass of the wide-character class "graph", the wide-character class |
| 40 | "xdigit" is disjoint from the wide-character class "space" and its subclass | |
| fea681da MK |
41 | "blank". |
| 42 | .PP | |
| d0f17b57 MK |
43 | Being a subclass of the wide-character class "alnum", the wide-character class |
| 44 | "xdigit" is disjoint from the wide-character class "punct". | |
| fea681da | 45 | .PP |
| d0f17b57 | 46 | The wide-character class "xdigit" always contains at least the letters 'A' |
| fea681da MK |
47 | to 'F', 'a' to 'f' and the digits '0' to '9'. |
| 48 | .SH "RETURN VALUE" | |
| 60a90ecd MK |
49 | The |
| 50 | .BR iswxdigit () | |
| 51 | function returns non-zero if \fIwc\fP is a wide character | |
| d0f17b57 | 52 | belonging to the wide-character class "xdigit". |
| c13182ef | 53 | Otherwise it returns zero. |
| fea681da | 54 | .SH "CONFORMING TO" |
| 68e1685c | 55 | C99. |
| fea681da | 56 | .SH NOTES |
| d9bfdb9c | 57 | The behavior of |
| 60a90ecd MK |
58 | .BR iswxdigit () |
| 59 | depends on the LC_CTYPE category of the | |
| fea681da | 60 | current locale. |
| e37e3282 MK |
61 | .SH "SEE ALSO" |
| 62 | .BR iswctype (3), | |
| 63 | .BR isxdigit (3) |