3. Template Class, Reference, Memory Management A) Consider the following class: #include using namespace std

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3 Template Class Reference Memory Management A Consider The Following Class Include Iostream Using Namespace Std 1 (71.3 KiB) Viewed 10 times

3. Template Class, Reference, Memory Management A) Consider the following class: #include <iostream> using namespace std; class Ptr { public: Ptr (int p): curr (p) {} int operator* () const { return *curr; } private: T* curr; The class just represents an int pointer and cannot be used for much, but the following will at least work: int main() { int x[] = {1, 2, 3); Ptr p = x; cout << *p << endl; } i) Reading via the Ptr object works but writing (example, *p = 3;) does not. Why? Modify the class such that this will work as well. [3 marks] ii) Modify the class in part A) such that the following code works: [4 marks] int main() { int x[] = {1, 2, 3); for (Ptr<int> p = x; p != x + 3; ++p) { cout << *p << " "; } cout << endl; string y[] = {"Welcome", "to", "UNMC", "Malaysia"); for (Ptr<string> p = y; p != y + 4; ++p) { cout << *p << " "; } cout << endl; }