setup project for assignment 3

Assignment_3/lib/Node.cpp

@@ -0,0 +1,43 @@
+#include <mutex>
+#include <lib/Node.h>
+
+Node::Node(int element){
+    data = element;
+    dummy = false;
+    deleted = false;
+}
+
+Node* Node::Dummy(){
+    Node* n = new Node(0);
+    n->dummy = true;
+    return n;
+}
+
+bool Node::is_smaller_than(Node* n) {
+    return this->is_smaller_than(n->data);
+}
+
+bool Node::is_smaller_than(int n) {
+    // Everything is smaller than a dummy -> false
+    return  this->data < n && !this->dummy;
+}
+
+bool Node::is_equal(int n) {
+    // Dummies are not equal to any number -> false
+    return  this->data == n && !this->dummy;
+}
+
+void Node::lock() {
+    this->mut.lock();
+} 
+void Node::unlock() {
+    this->mut.unlock();
+}
+
+bool Node::is_dummy() {
+    return dummy;
+}
+
+int Node::get_data(){
+    return data;
+}