A program contains the following code. Line numbers have been added to make it

easier for you to refer to them in your answer, but they are not part of the program.

$01$ class MyClass $\{$

$02$ public:

$03$ MyClass$($int$,$ int$*)$;

$04$ void exec$($void$)$;

$05$ private:

$06$ int i$1$;

$07$ int$*$ ip;

$08\}$;

$09$ MyClass::MyClass$($int a$,$ int$*$ b$)\{$

$10$ this$->$i$1=$ a;

$11$ this$->$ip $=$ b;

$12\}$

$13$ int MyClass::exec$($void$)\{$

$14*$ip $+=$ i$1$;

$15\}$

$($a$)$ What does an object of MyClass do$?[5]$

$($b$)$ Write out the type of MyClass$$s constructor in english words. $[4]$

$($c$)$ Rewrite the constructor so that it uses an initialisation list instead of explicit

assignment. $[2]$

$($d$)$ A programmer writes the following code which compiles without error:

int$*$ v $\{0\}$;

MyClass c$(2,$ v$)$;

c$.$exec$()$;

When the program runs, it produces a segmentation fault. Explain what the

programmer has done wrong. $[4]$

$($e$)$ The code is to be converted to use a std::unique$\_$ptr object instead of a

primitive pointer. Write down the declaration of v using such a pointer.

$[4]$

$($f$)$ What changes would have to be made to MyClass to allow it to operate with

a unique pointer instead of a primitive pointer?