So I've used plenty of STL functions which takes functors as parameters. For calculating set differences, for sorting vectors, etc. I'm in a situation where I'd like to write such a function ...

If he wants you to call his pay () function with actual currency, he can write functions that accept something more specific than Object. Brilliant explanation of how ridiculous this is.

Passing Iterator objects as function parameters can also be faster than passing in a cloned List object, because the copies to be contained in the Iterator need not be created unless the receiving ...