title: passing number of type long long into a function (reference vs value) (C++)
body: <p>I am new to the use of numbers that aren't doubles or ints. I know that passing an int or double should be passed by value (with consideration to memory/speed) but I am not sure about how to pass the long long data type into a function.</p>
  
  <p>Basically, is a long long number big enough that it would be faster to pass it by a const reference than by value?</p>