Passing Parameters

Ok, this is kinda confusing me, and what i thought should work, didn't. Lets say i have the following code:

Code:

 
int variable;

void function1(int *variable)
{
     // do something
     function2(int *variable);
}

void function2(int variable)
{

}

Of course, this wouldnt work because your passing a pointer to a non-pointer parameter. And you cant call

Code:

function2(int variable);

as that is not passing in the parameter correctly which was recieved in function 1.
I thought that i could get it to work by using:

Code:

function2(int &(*variable));

That way, it is passing the value of the pointer, hence what im after. But this doesnt work

So how can i call function2 inside function1? Do i need to change the structure of function2 to pass a pointer to it? If so, then how would i call it in function 1?

You can;

Pass to function 2 by pointer;

Code:

#include<iostream>

void function2(int*);//forward declaration

void function1(int *variable)
{
     // do something
     function2(variable);
}

void function2(int *variable)
{
	std::cout << *variable << std::endl;
}

int main()
{
  
	int variable = 10;

	function1(&variable);

	return 0;
}

or by value

Code:

#include<iostream>

void function2(int);//forward declaration

void function1(int *variable)
{
     // do something
     function2(*variable);
}

void function2(int variable)
{
	std::cout << variable << std::endl;
}

int main()
{
  
	int variable = 10;

	function1(&variable);

	return 0;
}

You can also bring references into it....

Code:

#include<iostream>

void function2(int&);//forward declaration

void function1(int& variable)
{
     // do something
     function2(variable);
}

void function2(int& variable)
{
	std::cout << variable << std::endl;
}

int main()
{
  
	int variable = 10;

	function1(variable);

	return 0;
}

choices..choices....

Ah, well thanks. I like choices That helps a lot, though i actually found the problem in my code to be:

Code:

*variable++;

which should be

Code:

(*variable)++;

But now i know how to pass the variables correctly, i found it Thanks.