does anyone know why i'm getting these errors?

Code:

#include <iostream>
#include <fstream>
#include <cassert>
using namespace std;

void  ReadAndSum(ifstream& dataFile, int& numberOfValues, float& average);
// Reads, counts, and averages the integers stored in a file
int main ()
{
    ifstream  dataFile;
    int  numberOfValues;
    float  average;

    cout.setf(ios::fixed, ios::floatfield);
    cout.setf(ios::showpoint);

    dataFile.open("Shell4.dat");

	assert(dataFile.is_open());	//check to make sure file opened

	if (dataFile.fail())
	{
		cout<<"Input file opening failed.\n";
		exit(1);
	}
	
	//dataFile >> num1 >> num2;
		
		

	ReadAndSum(dataFile, numberOfValues, average)

    cout  << "The average of "  << numberOfValues
          << " values is "  << average  << endl;

	dataFile.close();

    return 0;
}
//***************************************

void ReadAndSum(ifstream& dataFile, int& numberOfValues, float& average);

{
	double next;
	while (dataFile>>next)
	{
		cout<<next<<endl;
	}

}

these are the error message that i'm getting:

error C2146: syntax error : missing ';' before identifier 'cout'
error C2447: missing function header (old-style formal list?)

what am i doing wrong? any help with this is greatly appreciated!

thanks!

ReadAndSum(dataFile, numberOfValues, average)

is missing a ; as I see it

also, when you defined ReadAndSum, you accidentally put a semicolon

thank you! i also needed to take the ; from the function heading.... woooppppsss........