Added #ifdef to allow regression against system lib.

[pdclib] / functions / string / strrchr.c

diff --git a/functions/string/strrchr.c b/functions/string/strrchr.c
index 77b633fffc6968ac6e8286d1c1f5aa8fd684a377..69321b29e15e8ad4b2e6a37e81c2bfca80fabde9 100644 (file)
--- a/functions/string/strrchr.c
+++ b/functions/string/strrchr.c
@@ -10,6 +10,8 @@
 
 #include <string.h>
 
+#ifndef REGTEST
+
 char * strrchr( const char * s, int c )
 {
     size_t i = 0;
@@ -24,4 +26,19 @@ char * strrchr( const char * s, int c )
     return NULL;
 }
 
-#warning Test driver missing.
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    char abccd[] = "abccd";
+    BEGIN_TESTS;
+    TESTCASE( strrchr( abcde, '\0' ) == &abcde[5] );
+    TESTCASE( strrchr( abcde, 'e' ) == &abcde[4] );
+    TESTCASE( strrchr( abcde, 'a' ) == &abcde[0] );
+    TESTCASE( strrchr( abccd, 'c' ) == &abccd[3] );
+    return TEST_RESULTS;
+}
+#endif