-/* ----------------------------------------------------------------------------
- * $Id$
- * ----------------------------------------------------------------------------
- * Public Domain C Library - http://pdclib.sourceforge.net
- * This code is Public Domain. Use, modify, and redistribute at will.
- * --------------------------------------------------------------------------*/
+/* $Id$ */
-#include <__size_t.h>
+/* strncmp( const char *, const char *, size_t )
-int strncmp( const char * src_1, const char * src_2, size_t n )
+ 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
+
+int strncmp( const char * s1, const char * s2, size_t n )
{
- while ( ( n-- != 0 ) && ( *src_1 == *src_2 ) )
+ while ( n && ( *s1 == *s2 ) )
{
- ++src_1;
- ++src_2;
+ ++s1;
+ ++s2;
+ --n;
}
if ( ( n == 0 ) )
{
return 0;
}
- return ( *src_1 - *src_2 );
+ else
+ {
+ return ( *s1 - *s2 );
+ }
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ char cmpabcde[] = "abcde";
+ char empty[] = "";
+ char x[] = "x";
+ TESTCASE( strncmp( abcde, cmpabcde, 5 ) == 0 );
+ TESTCASE( strncmp( abcde, abcdx, 5 ) < 0 );
+ TESTCASE( strncmp( abcdx, abcde, 5 ) > 0 );
+ TESTCASE( strncmp( empty, abcde, 5 ) < 0 );
+ TESTCASE( strncmp( abcde, empty, 5 ) > 0 );
+ TESTCASE( strncmp( abcde, abcdx, 4 ) == 0 );
+ TESTCASE( strncmp( abcde, x, 0 ) == 0 );
+ TESTCASE( strncmp( abcde, x, 1 ) < 0 );
+ return TEST_RESULTS;
}
+#endif