not understanding the error

Question

void remove(float a[], int& n, int i);
int main()
{

float a[]={2,3,4,5,6};
cout<<"Removing: ";
remove(a,5,3); //error in this line
}
void remove(float a[], int& n, int i)
{

for(int j=i+1; j<n; j++)
{
a[j-1]=a[j];
--n;
}
}

this code has an error like bind non const 1value reference of type int& to an rvalue of type int...how can I fix the error?

Answer 1

Pass 'n' by value, i.e. int n, if you don't need to store anything in it for the caller. The problem is that a literal like 5 can not be bound to a reference. I also don't quite understand why you decrement 'n' in the loop if you want to shift the elements left.

Answer 2

Adding more to Shadow's answer, to fix this:

remove & from the "int& n" from the function remove() declaration

Answer 3

thank you