-/* $Id$ */
-
/* strncpy( char *, const char *, size_t )
This file is part of the Public Domain C Library (PDCLib).
#include <string.h>
-/* TODO: Debuggung only */
-#include <stdio.h>
-
#ifndef REGTEST
char * strncpy( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
while ( ( n > 0 ) && ( *s1++ = *s2++ ) )
{
/* Cannot do "n--" in the conditional as size_t is unsigned and we have
- to check it again for >0 in the next loop.
+ to check it again for >0 in the next loop below, so we must not risk
+ underflow.
*/
--n;
}
- /* TODO: This works correctly, but somehow the handling of n is ugly as
- hell.
- */
- if ( n > 0 )
+ /* Checking against 1 as we missed the last --n in the loop above. */
+ while ( n-- > 1 )
{
- while ( --n )
- {
- *s1++ = '\0';
- }
+ *s1++ = '\0';
}
return rc;
}
#endif
#ifdef TEST
-#include <_PDCLIB_test.h>
+
+#include "_PDCLIB_test.h"
int main( void )
{
TESTCASE( s[3] == 'd' );
return TEST_RESULTS;
}
+
#endif