4.3 Lab: Pointers and Structures

new is the operator used to dynamically allocate memory while the program is running

delete is the operator used to release memory when it is no longer needed, so it could be used next time new is used

This lab gives you an example of using new and delete with structures.

Your tasks are listed below:

- review the existing code

- find and fix errors

- write additional comments to briefly explain the error and your solution

#include #include using namespace std;

struct Stu{ string name; double gpa; };

void showStu(const Stu &anyStudent);

int main() {

Stu t = {"Tom", 3.5}; Stu b = {"Bob", 2.9}; Stu *ptrT; Stu *ptrB; ptrT = t; ptrB = b; ptrT = new Stu; ptrB = new Stu; showStu(*ptrT); showStu(*ptrB); return 0; }

/* This function displays all fields of its Stu structure parameter */ void showStu(const Stu &anyStudent) { cout << "Name: " << anyStudent->name << endl; cout << " gpa: " << anyStudent.gpa << endl; }