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6557 | serge | 1 | /* |
2 | FUNCTION |
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3 | < |
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4 | |||
5 | ANSI_SYNOPSIS |
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6 | #include |
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7 | int wmemcmp(const wchar_t *<[s1]>, const wchar_t *<[s2]>, size_t <[n]>); |
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8 | |||
9 | TRAD_SYNOPSIS |
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10 | int wmemcmp(<[s1]>, <[s2]>, <[n]> |
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11 | const wchar_t *<[s1]>; |
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12 | const wchar_t *<[s2]>; |
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13 | size_t <[n]>; |
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14 | |||
15 | DESCRIPTION |
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16 | The < |
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17 | object pointed to by <[s1]> to the first <[n]> wide characters of the |
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18 | object pointed to by <[s2]>. This function is not affected by locale |
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19 | and all wchar_t values are treated identically. The null wide character |
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20 | and wchar_t values not corresponding to valid characters are not treated |
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21 | specially. |
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22 | |||
23 | If <[n]> is zero, <[s1]> and <[s2]> must be a valid pointers and the |
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24 | function behaves as if the two objects compare equal. |
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25 | |||
26 | RETURNS |
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27 | The < |
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28 | or less than zero, accordingly as the object pointed to by <[s1]> is |
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29 | greater than, equal to, or less than the object pointed to by <[s2]>. |
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30 | |||
31 | PORTABILITY |
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32 | < |
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33 | |||
34 | No supporting OS subroutines are required. |
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35 | */ |
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36 | |||
37 | /* $NetBSD: wmemcmp.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */ |
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38 | |||
39 | /*- |
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40 | * Copyright (c)1999 Citrus Project, |
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41 | * All rights reserved. |
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42 | * |
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43 | * Redistribution and use in source and binary forms, with or without |
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44 | * modification, are permitted provided that the following conditions |
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45 | * are met: |
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46 | * 1. Redistributions of source code must retain the above copyright |
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47 | * notice, this list of conditions and the following disclaimer. |
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48 | * 2. Redistributions in binary form must reproduce the above copyright |
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49 | * notice, this list of conditions and the following disclaimer in the |
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50 | * documentation and/or other materials provided with the distribution. |
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51 | * |
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52 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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53 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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54 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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55 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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56 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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57 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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58 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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59 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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60 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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61 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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62 | * SUCH DAMAGE. |
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63 | * |
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64 | * citrus Id: wmemcmp.c,v 1.2 2000/12/20 14:08:31 itojun Exp |
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65 | */ |
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66 | |||
67 | #include <_ansi.h> |
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68 | #include |
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69 | |||
70 | int |
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71 | _DEFUN (wmemcmp, (s1, s2, n), |
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72 | _CONST wchar_t * s1 _AND |
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73 | _CONST wchar_t * s2 _AND |
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74 | size_t n) |
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75 | { |
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76 | size_t i; |
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77 | |||
78 | for (i = 0; i < n; i++) |
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79 | { |
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80 | if (*s1 != *s2) |
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81 | { |
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82 | /* wchar might be unsigned */ |
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83 | return *s1 > *s2 ? 1 : -1; |
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84 | } |
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85 | s1++; |
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86 | s2++; |
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87 | } |
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88 | return 0; |
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89 | }> |