projects / thirdparty / man-pages.git / blame
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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 |
| fea681da | 14 | .\" |
| 97986708 | 15 | .TH WCSCASECMP 3 2016-03-15 "GNU" "Linux Programmer's Manual" |
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16 | .SH NAME |
| 17 | wcscasecmp \- compare two wide-character strings, ignoring case | |
| 18 | .SH SYNOPSIS | |
| 19 | .nf | |
| 20 | .B #include <wchar.h> | |
| 68e4db0a | 21 | .PP |
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22 | .BI "int wcscasecmp(const wchar_t *" s1 ", const wchar_t *" s2 ); |
| 23 | .fi | |
| 68e4db0a | 24 | .PP |
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25 | .in -4n |
| 26 | Feature Test Macro Requirements for glibc (see | |
| 27 | .BR feature_test_macros (7)): | |
| 28 | .in | |
| 68e4db0a | 29 | .PP |
| df362fbf | 30 | .BR wcscasecmp (): |
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31 | .PD 0 |
| 32 | .ad l | |
| 33 | .RS 4 | |
| 34 | .TP 4 | |
| 35 | Since glibc 2.10: | |
| b0da7b8b | 36 | _POSIX_C_SOURCE\ >=\ 200809L |
| ea91c3fd | 37 | .TP |
| df362fbf MK |
38 | Before glibc 2.10: |
| 39 | _GNU_SOURCE | |
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40 | .RE |
| 41 | .ad | |
| 42 | .PD | |
| fea681da | 43 | .SH DESCRIPTION |
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44 | The |
| 45 | .BR wcscasecmp () | |
| 46 | function is the wide-character equivalent of the | |
| 47 | .BR strcasecmp (3) | |
| 48 | function. | |
| c13182ef | 49 | It compares the wide-character string pointed to |
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50 | by |
| 51 | .I s1 | |
| 52 | and the wide-character string pointed to by | |
| 53 | .IR s2 , | |
| 54 | ignoring | |
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55 | case differences |
| 56 | .RB ( towupper (3), | |
| 57 | .BR towlower (3)). | |
| 47297adb | 58 | .SH RETURN VALUE |
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59 | The |
| 60 | .BR wcscasecmp () | |
| 61 | function returns zero if the wide-character strings at | |
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62 | .I s1 |
| 63 | and | |
| 64 | .I s2 | |
| 65 | are equal except for case distinctions. | |
| c13182ef | 66 | It returns a |
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67 | positive integer if |
| 68 | .I s1 | |
| 69 | is greater than | |
| 70 | .IR s2 , | |
| 71 | ignoring case. | |
| c13182ef | 72 | It |
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73 | returns a negative integer if |
| 74 | .I s1 | |
| 75 | is smaller | |
| 76 | than | |
| 77 | .IR s2 , | |
| 78 | ignoring case. | |
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79 | .SH VERSIONS |
| 80 | The | |
| 81 | .BR wcscasecmp () | |
| 82 | function is provided in glibc since version 2.1. | |
| fde423dc | 83 | .SH ATTRIBUTES |
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84 | For an explanation of the terms used in this section, see |
| 85 | .BR attributes (7). | |
| 86 | .TS | |
| 87 | allbox; | |
| 88 | lb lb lb | |
| 89 | l l l. | |
| 90 | Interface Attribute Value | |
| 91 | T{ | |
| fde423dc | 92 | .BR wcscasecmp () |
| d37007bc PH |
93 | T} Thread safety MT-Safe locale |
| 94 | .TE | |
| 47297adb | 95 | .SH CONFORMING TO |
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96 | POSIX.1-2008. |
| 97 | This function is not specified in POSIX.1-2001, | |
| 98 | and is not widely available on other systems. | |
| fea681da | 99 | .SH NOTES |
| d9bfdb9c | 100 | The behavior of |
| 60a90ecd | 101 | .BR wcscasecmp () |
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102 | depends on the |
| 103 | .B LC_CTYPE | |
| 104 | category of the | |
| fea681da | 105 | current locale. |
| 47297adb | 106 | .SH SEE ALSO |
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107 | .BR strcasecmp (3), |
| 108 | .BR wcscmp (3) |