Added #ifdef to allow regression against system lib.

[pdclib] / functions / string / memcpy.c

diff --git a/functions/string/memcpy.c b/functions/string/memcpy.c
index 785b1cd4088d9098e681d0a50e6f263bf2509b59..064cc3479f54a498ad0144a712f58eb16290dba5 100644 (file)
--- a/functions/string/memcpy.c
+++ b/functions/string/memcpy.c
@@ -8,8 +8,11 @@
    Permission is granted to use, modify, and / or redistribute at will.
 */
 
+#include <_PDCLIB_aux.h>
 #include <string.h>
 
+#ifndef REGTEST
+
 void * memcpy( void * _PDCLIB_restrict s1, const void * _PDCLIB_restrict s2, size_t n )
 {
     char * dest = (char *) s1;
@@ -21,4 +24,21 @@ void * memcpy( void * _PDCLIB_restrict s1, const void * _PDCLIB_restrict s2, siz
     return s1;
 }
 
-#warning Test driver missing.
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    char s[] = "xxxxxxxxxxx";
+    BEGIN_TESTS;
+    TESTCASE( memcpy( s, abcde, 6 ) == s );
+    TESTCASE( s[4] == 'e' );
+    TESTCASE( s[5] == '\0' );
+    TESTCASE( memcpy( s + 5, abcde, 5 ) == s + 5 );
+    TESTCASE( s[9] == 'e' );
+    TESTCASE( s[10] == 'x' );
+    return TEST_RESULTS;
+}
+#endif