Added #ifdef to allow regression against system lib.

[pdclib] / functions / string / strcat.c

diff --git a/functions/string/strcat.c b/functions/string/strcat.c
index a4eab143b3352907df5f21e6877d9b1dcc083dee..d9609157ffc77f048a63eb07054630589210c3a0 100644 (file)
--- a/functions/string/strcat.c
+++ b/functions/string/strcat.c
@@ -9,6 +9,9 @@
 */
 
 #include <_PDCLIB_aux.h>
+#include <string.h>
+
+#ifndef REGTEST
 
 char * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
 {
@@ -21,11 +24,27 @@ char * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
     return rc;
 }
 
-#warning Test driver missing.
+#endif
 
 #ifdef TEST
+#include <_PDCLIB_test.h>
+
 int main()
 {
-    return 0;
+    char s[] = "xx\0xxxxxx";
+    BEGIN_TESTS;
+    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