C++ :: How To Check For EOF Without Getline

I'm currently trying to write a while loop that checks if the text file has read all the contents inside. I've tried using

while(!in.eof())

but as usual it executes my loop an extra iteration, printing my last output twice. I am reading my data in from a method inside a class, so I cannot use getline as my while test to check if the file has read input or not. Is there any way to force my loop to check if the end of file has been read before the eof() test is executed?