BizHawk/waterbox/libc/functions/string/strpbrk.c

48 lines
1.0 KiB
C

/* strpbrk( const char *, const char * )
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 * strpbrk( const char * s1, const char * s2 )
{
const char * p1 = s1;
const char * p2;
while ( *p1 )
{
p2 = s2;
while ( *p2 )
{
if ( *p1 == *p2++ )
{
return (char *) p1;
}
}
++p1;
}
return NULL;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
TESTCASE( strpbrk( abcde, "x" ) == NULL );
TESTCASE( strpbrk( abcde, "xyz" ) == NULL );
TESTCASE( strpbrk( abcdx, "x" ) == &abcdx[4] );
TESTCASE( strpbrk( abcdx, "xyz" ) == &abcdx[4] );
TESTCASE( strpbrk( abcdx, "zyx" ) == &abcdx[4] );
TESTCASE( strpbrk( abcde, "a" ) == &abcde[0] );
TESTCASE( strpbrk( abcde, "abc" ) == &abcde[0] );
TESTCASE( strpbrk( abcde, "cba" ) == &abcde[0] );
return TEST_RESULTS;
}
#endif