Re: What does it mean when the address operator comes after the type?
Posted 08 September 2012 - 10:25 AM
In that context & isn't the address-of operator, it's part of the function's signature. It signifies that the function takes a reference to a Mat object and returns a reference to a Mat object (the same that a Mat* would denote a pointer to a Mat object).
For more information read up about references in C++.