/* $Id$ */
-/* Release $Name$ */
-
/* memmove( void *, const void *, size_t )
This file is part of the Public Domain C Library (PDCLib).
#include <string.h>
+#ifndef REGTEST
+
void * memmove( void * s1, const void * s2, size_t n )
{
char * dest = (char *) s1;
const char * src = (const char *) s2;
- if ( dest < src )
+ if ( dest <= src )
{
while ( n-- )
{
dest += n;
while ( n-- )
{
- *dest-- = *src--;
+ *--dest = *--src;
}
}
return s1;
}
-#warning Test driver missing.
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ char s[] = "xxxxabcde";
+ TESTCASE( memmove( s, s + 4, 5 ) == s );
+ TESTCASE( s[0] == 'a' );
+ TESTCASE( s[4] == 'e' );
+ TESTCASE( s[5] == 'b' );
+ TESTCASE( memmove( s + 4, s, 5 ) == s + 4 );
+ TESTCASE( s[4] == 'a' );
+ return TEST_RESULTS;
+}
+#endif