Mod 2:2

Author: Tamoziit

pyqs/Increment.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+using namespace std;
+
+class Increment
+{
+ int value;
+
+public:
+ Increment(int v = 0) : value(v) {}
+
+ Increment &operator++()
+ {
+ ++value;
+ return *this;
+ }
+
+ Increment operator++(int)
+ {
+ Increment temp = *this;
+ value++;
+ return temp;
+ }
+
+ void display()
+ {
+ cout << "value = " << value << endl;
+ }
+};
+
+int main()
+{
+ Increment ob(5);
+ (++ob).display();
+ (ob++).display();
+ ob.display();
+
+ return 0;
+}

pyqs/OutOfBound.cpp

@@ -0,0 +1,48 @@
+#include <iostream>
+#include <cstring>
+#include <exception>
+using namespace std;
+
+class ArrayIndexOutOfBounException : public exception
+{
+ int idx;
+ char *message;
+
+public:
+ ArrayIndexOutOfBounException(int i) : idx(i)
+ {
+ message = new char[100];
+ }
+
+ const char *what() const noexcept override
+ {
+ strcpy(message, "Array index out of bound");
+ return message;
+ }
+
+ ~ArrayIndexOutOfBounException()
+ {
+ delete[] message;
+ }
+};
+
+int main()
+{
+ int arr[] = {1, 2, 3, 4};
+ int idx;
+ cout << "Enter index:";
+ cin >> idx;
+
+ try
+ {
+ if (idx < 0 || idx > 3)
+ throw ArrayIndexOutOfBounException(idx);
+
+ cout << "Value = " << arr[idx] << endl;
+ }
+ catch (const ArrayIndexOutOfBounException& e)
+ {
+ cout << e.what() << endl;
+ }
+ return 0;
+}

pyqs/Template.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+template <typename T>
+T add(T a, T b)
+{
+ return a + b;
+}
+
+template <>
+string add<string>(string a, string b)
+{
+ return a + b;
+}
+
+int main()
+{
+ cout << "Int Addition: " << add(1, 2) << endl;
+ cout << "Float Addition: " << add(1.3, 5.6) << endl;
+ cout << "String: " << add<string>("Hello ", "World") << endl;
+
+ return 0;
+}

pyqs/customExp.cpp

@@ -0,0 +1,51 @@
+#include <iostream>
+#include <cstring>
+#include <exception>
+using namespace std;
+
+class test : public exception
+{
+ char *message;
+
+public:
+ test(const char *msg)
+ {
+ message = new char[strlen(msg) + 1];
+ strcpy(message, msg);
+ }
+
+ // Override what() to return the message
+ const char *what() const noexcept override
+ {
+ return message;
+ }
+
+ ~test()
+ {
+ delete[] message;
+ }
+};
+
+int main()
+{
+ char input[100];
+ cout << "Enter" << endl;
+ cin >> input;
+
+ try
+ {
+ if (strcmp(input, "123") == 0)
+ {
+ throw test("Entered Number");
+ }
+ else
+ {
+ cout << "Valid i/p: " << input << endl;
+ }
+ }
+ catch (test &e)
+ {
+ cout << e.what() << endl;
+ }
+ return 0;
+}

pyqs/operatorOverload.cpp

@@ -0,0 +1,32 @@
+#include <iostream>
+using namespace std;
+
+class operatorOverload
+{
+ int i;
+
+public:
+ friend istream &operator>>(istream &in, operatorOverload &t);
+ friend ostream &operator<<(ostream &out, operatorOverload &t);
+};
+
+istream &operator>>(istream &in, operatorOverload &t)
+{
+ in >> t.i;
+ return in;
+}
+
+ostream &operator<<(ostream &out, operatorOverload &t)
+{
+ out << t.i;
+ return out;
+}
+
+int main()
+{
+ operatorOverload obj;
+ cout << "Enter input" << endl;
+ cin >> obj;
+ cout << obj;
+ return 0;
+}