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 | .\" |
| 4b8c67d9 | 15 | .TH WCSDUP 3 2017-09-15 "GNU" "Linux Programmer's Manual" |
| fea681da MK |
16 | .SH NAME |
| 17 | wcsdup \- duplicate a wide-character string | |
| 18 | .SH SYNOPSIS | |
| 19 | .nf | |
| fea681da | 20 | .B #include <wchar.h> |
| 68e4db0a | 21 | .PP |
| fea681da MK |
22 | .BI "wchar_t *wcsdup(const wchar_t *" s ); |
| 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 |
| d6a4140d | 30 | .BR wcsdup (): |
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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 |
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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 wcsdup () | |
| 46 | function is the wide-character equivalent | |
| 47 | of the | |
| 48 | .BR strdup (3) | |
| 49 | function. | |
| c13182ef | 50 | It allocates and returns a new wide-character string whose initial |
| 40aa0db0 MK |
51 | contents is a duplicate of the wide-character string pointed to by |
| 52 | .IR s . | |
| fea681da | 53 | .PP |
| c13182ef | 54 | Memory for the new wide-character string is |
| 60a90ecd MK |
55 | obtained with |
| 56 | .BR malloc (3), | |
| 60d38add | 57 | and should be freed with |
| 60a90ecd | 58 | .BR free (3). |
| 47297adb | 59 | .SH RETURN VALUE |
| 572acb41 | 60 | On success, |
| 60a90ecd | 61 | .BR wcsdup () |
| 572acb41 | 62 | returns a pointer to the new wide-character string. |
| a150608c | 63 | On error, it returns NULL, with |
| 572acb41 MK |
64 | .I errno |
| 65 | set to indicate the cause of the error. | |
| fea681da MK |
66 | .SH ERRORS |
| 67 | .TP | |
| 68 | .B ENOMEM | |
| 69 | Insufficient memory available to allocate duplicate string. | |
| 76548b21 MS |
70 | .SH ATTRIBUTES |
| 71 | For an explanation of the terms used in this section, see | |
| 72 | .BR attributes (7). | |
| 73 | .TS | |
| 74 | allbox; | |
| 75 | lb lb lb | |
| 76 | l l l. | |
| 77 | Interface Attribute Value | |
| 78 | T{ | |
| 79 | .BR wcsdup () | |
| 80 | T} Thread safety MT-Safe | |
| 81 | .TE | |
| 847e0d88 | 82 | .sp 1 |
| 47297adb | 83 | .SH CONFORMING TO |
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84 | POSIX.1-2008. |
| 85 | This function is not specified in POSIX.1-2001, | |
| 86 | and is not widely available on other systems. | |
| fea681da | 87 | .\" present in libc5 and glibc 2.0 and later |
| 47297adb | 88 | .SH SEE ALSO |
| fea681da | 89 | .BR strdup (3), |
| 0a4f8b7b | 90 | .BR wcscpy (3) |