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/* strrchr( const char *, int )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <string.h>
#ifndef REGTEST
char * strrchr( const char * s, int c )
{
size_t i = 0;
while ( s[i++] )
{
/* EMPTY */
}
do
{
if ( s[--i] == ( char ) c )
{
return ( char * ) s + i;
}
} while ( i );
return NULL;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
char abccd[] = "abccd";
TESTCASE( strrchr( abcde, '\0' ) == &abcde[5] );
TESTCASE( strrchr( abcde, 'e' ) == &abcde[4] );
TESTCASE( strrchr( abcde, 'a' ) == &abcde[0] );
TESTCASE( strrchr( abccd, 'c' ) == &abccd[3] );
return TEST_RESULTS;
}
#endif
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