1 | /* |
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2 | FUNCTION |
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3 | <<wcscat>>---concatenate two wide-character strings |
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4 | INDEX |
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5 | wcscat |
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6 | |
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7 | SYNOPSIS |
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8 | #include <wchar.h> |
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9 | wchar_t *wcscat(wchar_t *__restrict <[s1]>, |
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10 | const wchar_t *__restrict <[s2]>); |
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11 | |
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12 | DESCRIPTION |
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13 | The <<wcscat>> function appends a copy of the wide-character string |
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14 | pointed to by <[s2]> (including the terminating null wide-character |
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15 | code) to the end of the wide-character string pointed to by <[s1]>. |
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16 | The initial wide-character code of <[s2]> overwrites the null |
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17 | wide-character code at the end of <[s1]>. If copying takes place between |
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18 | objects that overlap, the behaviour is undefined. |
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19 | |
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20 | RETURNS |
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21 | The <<wcscat>> function returns <[s1]>; |
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22 | no return value is reserved to indicate an error. |
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23 | |
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24 | PORTABILITY |
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25 | <<wcscat>> is ISO/IEC 9899/AMD1:1995 (ISO C). |
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26 | |
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27 | No supporting OS subroutines are required. |
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28 | */ |
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29 | |
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30 | /* $NetBSD: wcscat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $ */ |
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31 | |
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32 | /*- |
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33 | * Copyright (c)1999 Citrus Project, |
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34 | * All rights reserved. |
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35 | * |
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36 | * Redistribution and use in source and binary forms, with or without |
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37 | * modification, are permitted provided that the following conditions |
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38 | * are met: |
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39 | * 1. Redistributions of source code must retain the above copyright |
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40 | * notice, this list of conditions and the following disclaimer. |
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41 | * 2. Redistributions in binary form must reproduce the above copyright |
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42 | * notice, this list of conditions and the following disclaimer in the |
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43 | * documentation and/or other materials provided with the distribution. |
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44 | * |
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45 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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46 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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47 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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48 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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49 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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50 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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51 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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52 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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53 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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54 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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55 | * SUCH DAMAGE. |
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56 | * |
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57 | * citrus Id: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp |
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58 | */ |
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59 | |
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60 | #include <_ansi.h> |
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61 | #include <wchar.h> |
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62 | |
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63 | wchar_t * |
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64 | wcscat (wchar_t *__restrict s1, |
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65 | const wchar_t *__restrict s2) |
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66 | { |
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67 | wchar_t *p; |
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68 | wchar_t *q; |
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69 | const wchar_t *r; |
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70 | |
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71 | p = s1; |
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72 | while (*p) |
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73 | p++; |
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74 | q = p; |
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75 | r = s2; |
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76 | while (*r) |
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77 | *q++ = *r++; |
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78 | *q = '\0'; |
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79 | return s1; |
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80 | } |
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