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I understand arrays pretty well. It's combining one with an input file that confuses me.
Here is what I have so far:


void fill_array(int a[],int size, int& number_used)

{
int...

I don't quite understand how to get an input file to fill an array. It's part of a much bigger program, and I need this file (filled with 20 numbers) to be read in it's entirety (an eof?) to an array.