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2077cebca0
* clean up usb_arcotg_dcd_enable git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14740 a1c6a512-1295-4272-9138-f99709370657
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: $
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*
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* Copyright (C) 2007 by Christian Gmeiner
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*
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****************************************************************************/
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#include <string.h>
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/**
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* Locate substring.
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* @param search c string to be scanned.
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* @param find c string containing the sequence of characters to match.
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* @return a pointer to the first occurrence in search of any of the
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* entire sequence of characters specified in find, or a
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* null pointer if the sequence is not present in search.
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*/
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char *strstr(const char *search, const char *find)
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{
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char *hend;
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char *a, *b;
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if (*find == 0) return (char*)search;
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hend = (char *)search + strlen(search) - strlen(find) + 1;
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while (search < hend) {
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if (*search == *find) {
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a = (char *)search;
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b = (char *)find;
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for (;;) {
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if (*b == 0) return (char*)search;
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if (*a++ != *b++) {
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break;
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}
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}
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}
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search++;
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}
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return 0;
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}
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