operator overloading

[Johan]

Hi,

What does overloading operator () exactly do ?.

John

 

[Rolf Magnus]

Hi,

What does overloading operator () exactly do ?.

You get an object that you can use like a function.

 

[osmium]

What does overloading operator () exactly do ?.

The buzz word you need to know to learn more is functor. Aka function
object. A few minutes of googling didn't turn up anything I really liked.
(Wikipedia seems to be down - not a good start). If you have access to a
decent technical library the best write up I know of is in _Mastering
Object-Oriented Design ion C++_ by Horstmann, p. 220.

Note that this is the only way you can have a comma in the argument list.

I found these two links, don't really like either one of them, but they were
the only two of the first thirty or so hits that even seemed worth saving.

http://www.free-web-template.org/fu/functor.html

http://www.sgi.com/tech/stl/functors.html

 

[rami]

Andrei Alexandrescu's Generic Programming is the best book i have read
about the techniques used with templates to generalize your approach.
It has a detailed chapter on functors.

Also if you ae actually looking for functors you may find good
tutorials in boost library.
Regards,