bugfixes for compilation

kern/synchprobs/traffic_synch.c

@@ -45,7 +45,7 @@ static car * newcar(Direction origin, Direction dest)
 }
 
 // initialize the array active
-void activeinit()
+void activeinit(void)
 {
   active = kmalloc(12 * sizeof(car *));
   
@@ -79,7 +79,7 @@ static void clearint(car * done)
   // compass + origin is the array we use to determine what to add to the first number
   // newcar->dest gives the direction, which we use to find the offset indicating it's additive value
   // set the array of active cars to null at this value
-  int total = *(dirs + newcar->origin) + *(*(compass + newcar->origin) + newcar->dest);
+  int total = *(dirs + done->origin) + *(*(compass + done->origin) + done->dest);
   active + total = NULL;
   
   if (done->cv) // if this car was blocking something
@@ -211,7 +211,7 @@ void intersection_before_entry(Direction origin, Direction destination)
   
   for (int i = 0; i < 12; ++i)
   {
-    car * temp = *(active + i);
+    car * temp = active + i;
     
     if (temp)
     {
@@ -257,7 +257,7 @@ void intersection_before_entry(Direction origin, Direction destination)
 void intersection_after_exit(Direction origin, Direction destination)
 {
   lock_acquire(globlock);
-  int position = *(dirs + origin) + *(*(compass + origin) + dest);
+  int position = *(dirs + origin) + *(*(compass + origin) + destination);
   clearint(active + position);
   lock_release(globlock);
 }