adding the move constructor example for map insert

lectures/optimization/map_move/map_insert_copy.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+#include <map>
+#include <vector>
+#include <string>
+
+class LargeClass {
+public:
+    std::vector<int> data;
+    std::string name;
+
+    LargeClass(int size, const std::string& n) : data(size), name(n) {
+        // simulate work in the constructor
+        for (int i = 0; i < size; ++i) {
+            data[i] = i;
+        }
+    }
+
+    // define a copy constructor for demonstration purposes
+    LargeClass(const LargeClass& other) : data(other.data), name(other.name) {
+        // std::cout << "Copy constructor called\n";
+    }
+
+    // for demonstration, printing the object contents
+    void print() const {
+        std::cout << name << ": " << data[0] << "..." << data[data.size() - 1] << std::endl;
+    }
+};
+
+int main() {
+    const int num_elements = 10000000;
+    const int map_size = 10;
+
+    std::map<int, LargeClass> map_insert;
+
+    for (int i = 0; i < map_size; ++i) {
+        map_insert.insert({i, LargeClass(num_elements, "Insert_" + std::to_string(i))});
+    }
+
+    return 0;
+}
+