Permission is granted to use, modify, and / or redistribute at will.
*/
+#include <_PDCLIB_aux.h>
#include <string.h>
+#ifndef REGTEST
+
char * strncpy( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
{
char * rc = s1;
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.
*/
--n;
}
- while ( n-- )
+ while ( --n )
{
*s1++ = '\0';
}
return rc;
}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+ char s[] = "xxxxxxx";
+ BEGIN_TESTS;
+ TESTCASE( strncpy( s, "", 1 ) == s );
+ TESTCASE( s[0] == '\0' );
+ TESTCASE( s[1] == 'x' );
+ TESTCASE( strncpy( s, abcde, 6 ) == s );
+ TESTCASE( s[0] == 'a' );
+ TESTCASE( s[4] == 'e' );
+ TESTCASE( s[5] == '\0' );
+ TESTCASE( s[6] == 'x' );
+ TESTCASE( strncpy( s, abcde, 7 ) == s );
+ TESTCASE( s[6] == '\0' );
+ return TEST_RESULTS;
+}
+#endif