Added test drivers.

[pdclib] / functions / stdlib / lldiv.c

diff --git a/functions/stdlib/lldiv.c b/functions/stdlib/lldiv.c
index 349ff2b0a8b78fa5173100e1a43db79e169c4b7e..358b2881e287c46c77153d25fa0547d27c058c61 100644 (file)
--- a/functions/stdlib/lldiv.c
+++ b/functions/stdlib/lldiv.c
@@ -17,7 +17,7 @@ lldiv_t lldiv( long long int numer, long long int denom )
     lldiv_t rc;
     rc.quot = numer / denom;
     rc.rem  = numer % denom;
-    /* TODO */
+    /* TODO: pre-C99 compilers might require modulus corrections */
     return rc;
 }
 
@@ -26,11 +26,22 @@ lldiv_t lldiv( long long int numer, long long int denom )
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
+#ifndef _PDCLIB_CONFIG_H
+#include <_PDCLIB_config.h>
+#endif
+
 int main()
 {
-    int NO_TESTDRIVER = 0;
+    lldiv_t div;
     BEGIN_TESTS;
-    TESTCASE( NO_TESTDRIVER );
+    div = lldiv( 5, 2 );
+    TESTCASE( div.quot == 2 && div.rem == 1 );
+    div = lldiv( -5, 2 );
+    TESTCASE( div.quot == -2 && div.rem == -1 );
+    div = lldiv( 5, -2 );
+    TESTCASE( div.quot == -2 && div.rem == 1 );
+    TESTCASE( sizeof( div.quot ) == _PDCLIB_LLONG_BYTES );
+    TESTCASE( sizeof( div.rem )  == _PDCLIB_LLONG_BYTES );
     return TEST_RESULTS;
 }