Question

I’m used to program in C# or Java, so I’m doing really bad in C++. I believe it’s easy but I just can’t make this work. Please help me.

I have this:

void swap(vector  * vet, int i, int j)
{
    int temp = vet[i];
    vet[i] = vet[j];
    vet[j] = temp;
}

I’m calling the method this way:

swap(&vet, j, j - 1);

What I want is to pass the vector using pointers instead of using value.

Obs: The code compiles well without the “*” and “&”.

Please don’t say that I have to at least try to study pointers, because I did. I just can’t make this damn thing work!

Answer 1

You can try something like….

void swap(vector<int> &vet, int i, int j)
{
    int temp = vet[i];
    vet[i] = vet[j];
    vet[j] = temp;
}

and call your swap function as

swap(vet,i,j);

Bottomline: Use reference variables.They are more like reference in Java.