converting char to int, recursively

[NCRLwA7f]

Hello,
I have the following code to convert a character representation of a number to an integer number. The problem that I am having is breaking out the loop and I need a better way to increment the array.

so for example, if I have the number "23456" I will need to convert it to an integer value of 23456

In the following loop, i gets reassigned to 0 every time the function call itself.
Also, I'm not sure if my condition of reaching a null is even being reached.

  void ascii_to_int(string number){
	int i = 0;
	if(number[i] != '\0'){
		cout << (number[i] - '0');
		}
	
	ascii_to_int(&number[i+1]);
	return;
}

[jlb]

Why not just use stoi() instead of rolling your own?

[NCRLwA7f]

yes, that is very true and far more effective. The problem is that I need to know how to do this for an assignment.

[jlb]

Is recursion required?

This can easily be done with iteration.

[NCRLwA7f]

Yes recursion was required but i ended up figuring it out. I just passed the string which is just a char array as a pointer and just bumped the address every loop.
Thanks anyway.