Program stops working when class member function executes - c++

Question

I know there is something wrong with the class member functions because I comment everything in them out and the program will run fine but when I uncomment anything it stops working. The constructor runs fine as well.
Here is my CharArray.h file:
#ifndef CHARARRAY_H
#define CHARARRAY_H
class CharArray
{
private:
char * pArray;
int iSize;
public:
CharArray(int size)
{
char *pArray = nullptr;
iSize = size;
pArray = new char[iSize];
pArray = '\0';
}
void setItem (int loc, char ch);
char getItem (int loc);
~CharArray()
{
delete [] pArray;
}
};
#endif // CHARARRAY_H
Here is my member functions:
#include <iostream>
#include <cstring>
#include <iomanip>
#include <cstdio>
#include "CharArray.h"
using namespace std;
void CharArray::setItem (int loc, char ch)
{
pArray[loc] = ch;
cout << pArray[loc] << endl;
return;
}
char CharArray::getItem (int loc)
{
char c;
c = pArray[loc];
return c;
}
And here is my main file:
#include <iostream>
#include <iomanip>
#include "CharArray.h"
using namespace std;
int main()
{
CharArray myChar (5);
int size;
char cstr[10] = "Drew";
myChar.setItem(1, 'A');
char c = myChar.getItem(5);
cout << c << endl;
return 0;
}

Answer 1

Your first problem is in the constructor:
CharArray(int size)
{
char *pArray = nullptr; // <-- unrelated to the pArray in the object!
iSize = size;
pArray = new char[iSize];
pArray = '\0'; // <-- we just lost the handle to new array
}
That last line should instead be:
*pArray = '\0';
Also, it would be better to use a more modern constructor style such as this:
CharArray(int size)
: pArray(new char[size]),
iSize(size)
{
*pArray = '\0';
}