C++ allocating dynamic memory in a function - newbie question

Question

I\'m investigating a memory leak and from what I see, the problem looks like this:

int main(){
    char *cp = 0;
    func(cp);
    //code
    delete[] cp;
}

voi         


        

Answer 1

You are assigning cp the value of the allocated memory. However, that's a variable on the stack: a copy of the cp in main! cp is local to the function you're in.

What you want is a reference:

void func(char *& cp)

This will alias cp to be the parameter passed in.