Mercurial > trustbridge > nss-cmake-static

annotate nspr/lib/libc/src/strchr.c @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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2 /* This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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5
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6 #include "plstr.h"
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7 #include <string.h>
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8
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9 PR_IMPLEMENT(char *)
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10 PL_strchr(const char *s, char c)
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11 {
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12 if( (const char *)0 == s ) return (char *)0;
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13
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14 return strchr(s, c);
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15 }
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16
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17 PR_IMPLEMENT(char *)
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18 PL_strrchr(const char *s, char c)
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19 {
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20 if( (const char *)0 == s ) return (char *)0;
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21
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22 return strrchr(s, c);
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23 }
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24
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25 PR_IMPLEMENT(char *)
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26 PL_strnchr(const char *s, char c, PRUint32 n)
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27 {
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28 if( (const char *)0 == s ) return (char *)0;
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29
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30 for( ; n && *s; s++, n-- )
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31 if( *s == c )
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32 return (char *)s;
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33
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34 if( ((char)0 == c) && (n > 0) && ((char)0 == *s) ) return (char *)s;
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35
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36 return (char *)0;
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37 }
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38
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39 PR_IMPLEMENT(char *)
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40 PL_strnrchr(const char *s, char c, PRUint32 n)
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41 {
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42 const char *p;
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43
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44 if( (const char *)0 == s ) return (char *)0;
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45
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46 for( p = s; n && *p; p++, n-- )
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47 ;
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48
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49 if( ((char)0 == c) && (n > 0) && ((char)0 == *p) ) return (char *)p;
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50
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51 for( p--; p >= s; p-- )
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52 if( *p == c )
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53 return (char *)p;
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54
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55 return (char *)0;
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56 }
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