author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
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/* |
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* FUNCTION |
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* <<strchr>>---search for character in string |
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* INDEX |
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* strchr |
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* ANSI_SYNOPSIS |
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* #include <string.h> |
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* char * strchr(const char *<[string]>, int <[c]>); |
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* TRAD_SYNOPSIS |
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* #include <string.h> |
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* char * strchr(<[string]>, <[c]>); |
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* char *<[string]>; |
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* int *<[c]>; |
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* This function finds the first occurence of <[c]> (converted to |
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* a char) in the string pointed to by <[string]> (including the |
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* terminating null character). |
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* RETURNS |
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* Returns a pointer to the located character, or a null pointer |
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* if <[c]> does not occur in <[string]>. |
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* PORTABILITY |
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* <<strchr>> is ANSI C. |
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* <<strchr>> requires no supporting OS subroutines. |
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* QUICKREF |
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* strchr ansi pure |
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* |
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* |
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*/ |
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|
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|
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|
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#include <string.h> |
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|
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/** |
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Find character in string. |
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Returns the first occurrence of i in string. |
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The null-terminating character is included as part of the string |
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and can also be searched. |
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@return a pointer to the first occurrence of i in string is returned. |
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otherwise NULL is returned. |
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@param s Null-terminated string scanned in the search. |
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@param i Character to be found. |
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*/ |
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EXPORT_C char * |
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strchr (const char *s, int i) |
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{ |
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i = (char)i; |
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|
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for (;;) |
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{ |
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int c = *s++; |
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if (c == i) |
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return (char *) (s - 1); |
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if (c == 0) |
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return NULL; |
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} |
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} |
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|
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EXPORT_C char * |
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index (const char *s, int i) |
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{ |
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return strchr(s, i); |
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} |