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1 /* |
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2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * FUNCTION |
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16 * <<strrchr>>---reverse search for character in string |
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17 * INDEX |
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18 * strrchr |
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19 * ANSI_SYNOPSIS |
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20 * #include <string.h> |
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21 * char * strrchr(const char *<[string]>, int <[c]>); |
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22 * TRAD_SYNOPSIS |
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23 * #include <string.h> |
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24 * char * strrchr(<[string]>, <[c]>); |
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25 * char *<[string]>; |
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26 * int *<[c]>; |
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27 * This function finds the last occurence of <[c]> (converted to |
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28 * a char) in the string pointed to by <[string]> (including the |
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29 * terminating null character). |
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30 * RETURNS |
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31 * Returns a pointer to the located character, or a null pointer |
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32 * if <[c]> does not occur in <[string]>. |
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33 * PORTABILITY |
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34 * <<strrchr>> is ANSI C. |
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35 * <<strrchr>> requires no supporting OS subroutines. |
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36 * QUICKREF |
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37 * strrchr ansi pure |
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38 * |
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39 * |
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40 */ |
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41 |
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42 |
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43 |
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44 #include <string.h> |
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45 |
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46 /** |
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47 Find last occurrence of character in string. |
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48 Returns the last occurrence of c in string. |
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49 The null-terminating character is included as part of the string and can also be searched. |
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50 @return If character is found, a pointer to the last occurrence of c in string is returned. |
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51 If not, NULL is returned. |
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52 @param s Null-terminated string scanned in the search. |
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53 @param i Character to be found. |
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54 */ |
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55 EXPORT_C char * |
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56 strrchr (const char *s, int i) |
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57 { |
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58 const char *last = NULL; |
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59 i = (char)i; |
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60 |
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61 for (;;) |
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62 { |
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63 int c = *s++; |
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64 if (c == i) |
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65 last = s - 1; |
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66 if (c == 0) |
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67 break; |
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68 } |
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69 |
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70 return (char *) last; |
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71 } |
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72 |
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73 EXPORT_C char * |
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74 rindex (const char *s, int c) |
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75 { |
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76 return strrchr (s, c); |
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77 } |