X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstring%2Fstrncmp.c;h=35a9511da11174497d831d91857d56a8511d3dcb;hp=7f398fa9b2b9be4bce4763afabf4bf737e4bf2d2;hb=2f57d79a5a24856fdea69b2119d67e5fb5029b3e;hpb=1a0d9f7faca36f149db3b85c09a72528e0c73a83

diff --git a/functions/string/strncmp.c b/functions/string/strncmp.c
index 7f398fa..35a9511 100644
--- a/functions/string/strncmp.c
+++ b/functions/string/strncmp.c
@@ -28,11 +28,23 @@ int strncmp( const char * s1, const char * s2, size_t n )
     }
 }
 
-#warning Test driver missing.
-
 #ifdef TEST
+#include <_PDCLIB_test.h>
+
 int main()
 {
-    return 0;
+    char cmpabcde[] = "abcde";
+    char empty[] = "";
+    char x[] = "x";
+    BEGIN_TESTS;
+    TESTCASE( strncmp( abcde, cmpabcde, 5 ) == 0 );
+    TESTCASE( strncmp( abcde, abcdx, 5 ) < 0 );
+    TESTCASE( strncmp( abcdx, abcde, 5 ) > 0 );
+    TESTCASE( strncmp( empty, abcde, 5 ) < 0 );
+    TESTCASE( strncmp( abcde, empty, 5 ) > 0 );
+    TESTCASE( strncmp( abcde, abcdx, 4 ) == 0 );
+    TESTCASE( strncmp( abcde, x, 0 ) == 0 );
+    TESTCASE( strncmp( abcde, x, 1 ) < 0 );
+    return TEST_RESULTS;
 }
 #endif