X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrstr.c;h=2ad75058e75e21211a235b696c0c51151fa98804;hb=2f57d79a5a24856fdea69b2119d67e5fb5029b3e;hp=fc5950db4e0e05c2630285d39fca1dd90a4dae7f;hpb=d35060079d924391f4c36ab8b859bbfd7bb38ffe;p=pdclib

diff --git a/functions/string/strstr.c b/functions/string/strstr.c
index fc5950d..2ad7505 100644
--- a/functions/string/strstr.c
+++ b/functions/string/strstr.c
@@ -31,3 +31,20 @@ char * strstr( const char * s1, const char * s2 )
     }
     return NULL;
 }
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    char s[] = "abcabcabcdabcde";
+    BEGIN_TESTS;
+    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