Compilation Firewalls

Hello everyone,


Any ideas why Pimpl idiom is called "Compilation Firewalls"? :-)

http://www.gotw.ca/gotw/024.htm

I have thought for a while, and I think client code does not need to compile in Pimpl idiom, so like a firewall to block compile, it is called "Compilation Firewalls".

Any ideas why it is named "Compilation Firewalls"?


thanks in advance,
George

It is just a metaphor. A firewall is a fire-proof wall to stop fire from spreading. Pimpl is a technique to reduce code interdependencies and build times, it is a way to minimize what needs to be recompiled.

Thanks anon,


Question answered.

Quote:

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Originally Posted by anon

It is just a metaphor. A firewall is a fire-proof wall to stop fire from spreading. Pimpl is a technique to reduce code interdependencies and build times, it is a way to minimize what needs to be recompiled.

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regards,
George