Fix state switching

kernel/include/stl/vector.hpp

@@ -84,6 +84,22 @@ public:
         return data[pos];
     }
 
+    value_type& front(){
+        return data[0];
+    }
+
+    const value_type& front() const  {
+        return data[0];
+    }
+
+    value_type& back(){
+        return data[size() - 1];
+    }
+
+    const value_type& back() const  {
+        return data[size() - 1];
+    }
+
     //Modifiers
 
     void push_back(value_type&& element){

kernel/src/scheduler.cpp

@@ -197,5 +197,5 @@ void scheduler::queue_process(process_t&& p){
     processes.push_back(std::forward<scheduler::process_t>(p));
     rounds.push_back(0);
 
-    p.state = process_state::READY;
+    processes.back().state = process_state::READY;
 }