Wednesday, February 27, 2008
Wednesday, February 20, 2008
The Friend functions are functions defined outside a class (i.e., not member functions), but which the class declares to be friends so that they can make use of the class's private members. This is normally used in operator overloading. Perhaps the most general use of friend functions is overloading <<>> for I/O.
Another use of friend functions is to allow operators to be commutative. An operator is commutative if the end result is the same in spite of the order of its operands. Some typical examples are addition and multiplication. But, Subtraction and division are not commutative.
Wednesday, February 13, 2008
Firefox uses the open-source Gecko layout engine, which executes some existing Web standards plus some features which are intended to anticipate possible additions to the standards. Firefox has tabbed browsing, a spell checker, incremental find, live bookmarking, a download manager, and a search system that uses Google. Right now has 20 million users and allows you to import your favorites, settings and other details from Internet Explorer.