X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstring%2Fstrstr.c;h=5c97a750c076400c90bf61520c1f26b9c24e880a;hp=fc5950db4e0e05c2630285d39fca1dd90a4dae7f;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=d35060079d924391f4c36ab8b859bbfd7bb38ffe

diff --git a/functions/string/strstr.c b/functions/string/strstr.c
index fc5950d..5c97a75 100644
--- a/functions/string/strstr.c
+++ b/functions/string/strstr.c
@@ -1,7 +1,3 @@
-/* $Id$ */
-
-/* Release $Name$ */
-
 /* strstr( const char *, const char * )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -10,6 +6,8 @@
 
 #include <string.h>
 
+#ifndef REGTEST
+
 char * strstr( const char * s1, const char * s2 )
 {
     const char * p1 = s1;
@@ -31,3 +29,21 @@ char * strstr( const char * s1, const char * s2 )
     }
     return NULL;
 }
+
+#endif
+
+#ifdef TEST
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+    char s[] = "abcabcabcdabcde";
+    TESTCASE( strstr( s, "x" ) == NULL );
+    TESTCASE( strstr( s, "xyz" ) == NULL );
+    TESTCASE( strstr( s, "a" ) == &s[0] );
+    TESTCASE( strstr( s, "abc" ) == &s[0] );
+    TESTCASE( strstr( s, "abcd" ) == &s[6] );
+    TESTCASE( strstr( s, "abcde" ) == &s[10] );
+    return TEST_RESULTS;
+}
+#endif