Thread: Calling functions help

does anybody know what is wrong with this code i wrote? i'm working through a C++ book on my own and its difficult for me learning this stuff on my own. I tought myself visual basic and VB.NET no problem, but i've been having some trouble with this.

Code:

#include<iostream.h>

void main()
{
	
	const int arraySize=4;
	int integer[arraySize], a;
	void quadruple(int integer[]);
	for (a=0; a<arraySize; ++a)
	{
		cout<<"Enter an integer: ";
		cin>>integer[a];
	}
	quadruple(int integer[])
}

void quadruple(int values[])
{
	for (a=0; a<arraySize; ++a)
		integer[a]=integer[a]*4;
	for (a=0; a<arraySize;++a)
		cout<<integer[a]<<endl;
}