Issue #240: add arbitrary use of val's in foreach loops to squash warnings about unused variables.

tests/testReplaceExisting.c

@@ -24,7 +24,7 @@ int main(int argc, char **argv)
 	int orig_count = 0;
 	json_object_object_foreach(my_object, key0, val0)
 	{
-		printf("Key at index %d is [%s]", orig_count, key0);
+		printf("Key at index %d is [%s] %d", orig_count, key0, (val0 == NULL));
 		if (strcmp(key0, "deleteme") == 0)
 		{
 			json_object_object_del(my_object, key0);
@@ -41,7 +41,7 @@ int main(int argc, char **argv)
 	orig_count = 0;
 	json_object_object_foreach(my_object, key, val)
 	{
-		printf("Key at index %d is [%s]\n", orig_count, key);
+		printf("Key at index %d is [%s] %d\n", orig_count, key, (val == NULL));
 		orig_count++;
 		if (strcmp(key, "foo2") != 0)
 			continue;
@@ -56,7 +56,7 @@ int main(int argc, char **argv)
 	int retval = 0;
 	json_object_object_foreach(my_object, key2, val2)
 	{
-		printf("Key at index %d is [%s]\n", new_count, key2);
+		printf("Key at index %d is [%s] %d\n", new_count, key2, (val2 == NULL));
 		new_count++;
 		if (strcmp(key2, "foo2") != 0)
 			continue;

tests/testReplaceExisting.expected

@@ -1,15 +1,15 @@
 ==== delete-in-loop test starting ====
-Key at index 0 is [foo1] (kept)
-Key at index 1 is [foo2] (kept)
-Key at index 2 is [deleteme] (deleted)
-Key at index 3 is [foo3] (kept)
+Key at index 0 is [foo1] 0 (kept)
+Key at index 1 is [foo2] 0 (kept)
+Key at index 2 is [deleteme] 0 (deleted)
+Key at index 3 is [foo3] 0 (kept)
 ==== replace-value first loop starting ====
-Key at index 0 is [foo1]
-Key at index 1 is [foo2]
+Key at index 0 is [foo1] 0
+Key at index 1 is [foo2] 0
 replacing value for key [foo2]
-Key at index 2 is [foo3]
+Key at index 2 is [foo3] 0
 ==== second loop starting ====
-Key at index 0 is [foo1]
-Key at index 1 is [foo2]
+Key at index 0 is [foo1] 0
+Key at index 1 is [foo2] 0
 pointer for key [foo2] does match
-Key at index 2 is [foo3]
+Key at index 2 is [foo3] 0