Mercurial > hgrepos > Python2 > PyMuPDF
annotate mupdf-source/thirdparty/curl/lib/curl_memrchr.c @ 46:7ee69f120f19 default tip
>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Sat, 11 Oct 2025 17:17:30 +0200 |
| parents | b50eed0cc0ef |
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1 /*************************************************************************** |
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2 * _ _ ____ _ |
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3 * Project ___| | | | _ \| | |
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4 * / __| | | | |_) | | |
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5 * | (__| |_| | _ <| |___ |
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6 * \___|\___/|_| \_\_____| |
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7 * |
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8 * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al. |
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9 * |
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10 * This software is licensed as described in the file COPYING, which |
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11 * you should have received as part of this distribution. The terms |
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12 * are also available at https://curl.haxx.se/docs/copyright.html. |
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13 * |
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
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15 * copies of the Software, and permit persons to whom the Software is |
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16 * furnished to do so, under the terms of the COPYING file. |
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17 * |
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
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19 * KIND, either express or implied. |
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20 * |
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21 ***************************************************************************/ |
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22 |
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23 #include "curl_setup.h" |
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24 |
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25 #include <curl/curl.h> |
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26 |
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27 #include "curl_memrchr.h" |
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28 #include "curl_memory.h" |
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29 |
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30 /* The last #include file should be: */ |
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31 #include "memdebug.h" |
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32 |
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33 #ifndef HAVE_MEMRCHR |
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34 |
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35 /* |
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36 * Curl_memrchr() |
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37 * |
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38 * Our memrchr() function clone for systems which lack this function. The |
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39 * memrchr() function is like the memchr() function, except that it searches |
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40 * backwards from the end of the n bytes pointed to by s instead of forward |
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41 * from the beginning. |
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42 */ |
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43 |
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44 void * |
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45 Curl_memrchr(const void *s, int c, size_t n) |
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46 { |
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47 if(n > 0) { |
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48 const unsigned char *p = s; |
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49 const unsigned char *q = s; |
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50 |
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51 p += n - 1; |
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52 |
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53 while(p >= q) { |
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54 if(*p == (unsigned char)c) |
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55 return (void *)p; |
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56 p--; |
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57 } |
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58 } |
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59 return NULL; |
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60 } |
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61 |
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62 #endif /* HAVE_MEMRCHR */ |
