-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-char * strcat( char * restrict dest, const char * restrict src )
+/* $Id$ */
+
+/* strcat( 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 * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
{
- char * dest_p = dest;
- if ( *dest_p != '\0' )
- {
- while ( *++dest_p != '\0' )
- {
- // EMPTY
- }
- }
- while ( (*dest_p++ = *src++) != '\0' )
+ char * rc = s1;
+ if ( *s1 )
{
- // EMPTY
+ while ( *++s1 );
}
- return dest;
+ while ( (*s1++ = *s2++) );
+ return rc;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ char s[] = "xx\0xxxxxx";
+ TESTCASE( strcat( s, abcde ) == s );
+ TESTCASE( s[2] == 'a' );
+ TESTCASE( s[6] == 'e' );
+ TESTCASE( s[7] == '\0' );
+ TESTCASE( s[8] == 'x' );
+ s[0] = '\0';
+ TESTCASE( strcat( s, abcdx ) == s );
+ TESTCASE( s[4] == 'x' );
+ TESTCASE( s[5] == '\0' );
+ TESTCASE( strcat( s, "\0" ) == s );
+ TESTCASE( s[5] == '\0' );
+ TESTCASE( s[6] == 'e' );
+ return TEST_RESULTS;
}
+#endif