Nice

point/hashmap.cpp

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+/* Hash map example
+ * November 18, 2023 */
+#include <iostream>
+#include <string>
+#include <unordered_map>
+using namespace std;
+
+int main(void) {
+	unordered_map<string, int> mymap {
+		{"Uno", 1},
+		{"Dos", 2},
+		{"Tres", 3},
+		{"Quatro", 4},
+		{"Cinco", 5},
+	};
+
+	cout << "Printing mymap:" << endl;
+
+	for (const auto& x: mymap) {
+		string s = x.first;
+		int v = x.second;
+
+		cout << "mymap[" << s << "] = " << v << endl;
+	}
+
+	return 0;
+}
+

point/list.cpp

@@ -0,0 +1,86 @@
+/* C++ list
+ * November 18, 2023 */
+#include <iostream>
+#include <list>
+#include <string>
+#include <cstdio>
+using namespace std;
+
+class Color {
+private:
+	short red;
+	short green;
+	short blue;
+	string name;
+
+public:
+	Color(void) {
+		red = 0;
+		green = 0;
+		blue = 0;
+		cout << "Constructed color" << endl;
+	}
+	Color(int r) {
+		red = (short)r;
+		green = 0;
+		blue = 0;
+		cout << "Constructed color" << endl;
+	}
+	Color(int r, int g, int b) {
+		red = (short)r;
+		green = (short)g;
+		blue = (short)b;
+		cout << "Constructed color" << endl;
+	}
+	Color(string n, int r, int g, int b) {
+		name = n;
+		red = (short)r;
+		green = (short)g;
+		blue = (short)b;
+		cout << "Constructed color " << n << endl;
+	}
+	~Color(void) {
+		if (!name.empty())
+			cout << "Destroyed color " << name << endl;
+		else
+			cout << "Destroyed color" << endl;
+	}
+
+	void print(void) {
+		cout << "Red: " << red << endl;
+		cout << "Green: " << green << endl;
+		cout << "Blue: " << blue << endl;
+		if (!name.empty()) {
+			cout << name << endl;
+		}
+	}
+
+	void printHex(void) {
+		printf("%x %x %x\n", red, green, blue);
+		cout << name << endl;
+	}
+};
+
+int main(void) {
+	list<Color> li;
+	li.push_back(Color("gray", 50, 50, 50));
+	li.push_back(Color("purple", 255, 60, 255));
+	li.push_back(Color("red", 255, 0, 0));
+	cout << endl;
+
+	for (Color c : li) {
+		c.printHex();
+	}
+	cout << endl;
+
+	li.clear();
+	li.push_back(Color("yellow", 255, 255, 0));
+	li.push_back(Color("blue", 0, 10, 255));
+	for (Color c : li) {
+		c.printHex();
+	}
+	cout << endl;
+
+	return 0;
+}
+