C++ getSmallest program - c++

Question

I keep getting function definition is not allowed where the '{' is after int getSmallest(int numbers[],int SIZE);. I am having trouble figuring out how to fix it and getting this program to compile.. This is what I have as of right now:
#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;
// Function prototypes
int getSmallest(int numbers[], int SIZE);
int main()
{
int count = 0;
int numbers[SIZE];
string inFile;
cout << "Enter input file name:";
cin >> inFile;
ifstream file(inFile);
//Reading from file
for (count = 0; count < SIZE; count++) {
cout << SIZE << "numbers read from file." << endl;
cout << "The smallest value is: " << getSmallest(numbers, SIZE) << endl;
}
}
int getSmallest(int numbers[], int SIZE)
{
smallest = numbers[0];
for (count = 1; count < SIZE; count++) {
if (numbers[count] < smallest) {
smallest = numbers[count];
}
return smallest;
}
}

Answer 1

The problem is in your function. Variable smallest and count are not defined ... you didn't specify type. You defined them in your main, but your function does not know anything about variables in main. Just about variables that you passed (numbers and SIZE). Try it like this:
int getSmallest(int numbers[], int SIZE)
{
int smallest = numbers[0];
for (int count = 1; count < SIZE; count++) {
if (numbers[count] < smallest) {
smallest = numbers[count];
}
return smallest;
}
}
*Note the int before smallest and count
I also noticed that this function returns immediately after one loop iteration. You should write that return statement outside for loop
int getSmallest(int numbers[], int SIZE)
{
int smallest = numbers[0];
for (int count = 1; count < SIZE; count++) {
if (numbers[count] < smallest) {
smallest = numbers[count];
}
}
return smallest;
}
Also, I don't know if that SIZE is defined anywhere in any header file, but it is not defined in your program.
You are also not reading from file. Maybe this link will help you understand how to read from file: http://www.cplusplus.com/doc/tutorial/files/