c++ design pattern question. single interface multiple implementations? [duplicate]

Question

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How do you declare an interface in C++?

Hi,

What's the preferable way to create single interface and multiple implementations in c++?

For example, I'd like to implement kqueue for mac and epoll for linux and share the interface.

Thank you

I would in this case try to keep the interface in the header general enough so it works with either implementation, and just make two different detail source files and #ifdef #include the right one from a third one. This is not as elegant, but it works. The reason why I would go this way is that it is kind of pointless to use a sophisticated pattern that can decide at runtime if it is clear from the beginning that you will only ever use one implementation on a particular platform. — Damon
– Damon, Commented May 3, 2011 at 8:49

stefaanv · Accepted Answer · 2011-05-03 07:52:13Z

2

The Strategy Pattern is probably what you are looking for.
The Abstract Factory Pattern can help you fill in the right implementation when starting up.

answered May 3, 2011 at 7:52

stefaanv

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