Printing values from a pointer array

[amoureux]

Here i have is a arithmetic addition calculator that has no value boundaries.
Firstly, i used a string to read in 2 values, then i store them into an integer array before adding them and adding to another total array. All array are connected via pointer. However, i got a problem trying to print them out.

  int main()
{
	string str1, str2;
	
	cout << "Enter the first string" << endl;
	cin >> str1;
	
	cout << "Enter the second string" << endl;
	cin >> str2;
	
	stringtoInt(str1, str2);
}

void stringtoInt(string& s1, string& s2)
{
	int size1, size2;
	int i = 0;

	
	intPtr intArray;
	intPtr intArray2;
	
	intArray = new int[MAX];
	intArray2 = new int[MAX];
	
	size1 = s1.size();
	size2 = s2.size();
	
	for (int i = 0; i < size1; i++)
	{
		intArray[i] = s1[i] - '0';
	}
	
	
	for (int i = 0; i < size2; i++)
	{
		intArray2[i] = s1[i] - '0';
        }
	
   addInteger(intArray, intArray2);		  
}

void addInteger(intPtr intArray, intPtr intArray2)
{
int *p = &intArray[0];
int *q = &intArray2[0];
	
intPtr total;
	
total = new int[MAX];
	
int i = 0;
	
int sum = 0;
int carried = 0;
	
while (*p >= 0 || *q >= 0 || carried == 1)
{
	total[i] = *p + *q + carried;
		
	if(total[i] > 9)
	{
		total[i] %= 10;
		carried = 1;
	}
		
	else
	{	
		carried = 0;
	}
		
  }
	
}

Usually when printing an array i require a size, but my design does not have a size. What could be an alternative way to print the total array.

[integralfx]

	intPtr intArray;
	intPtr intArray2;
	
	intArray = new int[MAX];
	intArray2 = new int[MAX];

Why not this?

intArray = new int[s1.size( )];

	size1 = s1.size();
	size2 = s2.size();

        for (int i = 0; i < size1; i++)
	{
		intArray[i] = s1[i] - '0';
	}

Again, why not

for (int i = 0; i < s1.size( ); i++)

int i = 0; declared on line 17 is unused.

int *p = &intArray[0];
int *q = &intArray2[0];

is equivalent to this

int *p = intArray;

Try to be consistent. If you used intPtr in the same context throughout your program, why isn't it used here?

intPtr total;
	
total = new int[MAX];

can be shortened to

intPtr total = new int[MAX];

while (*p >= 0 || *q >= 0 || carried == 1)
{
	total[i] = *p + *q + carried;
		
	if(total[i] > 9)
	{
		total[i] %= 10;
		carried = 1;
	}
		
	else
	{	
		carried = 0;
	}
		
  }
	
}

You're not progressing your pointers and i, so you have an infinite loop.
Also, you need to start from the last element of the array.