Re: [Boost-users] [netlib] throwing exceptions with http_client.cpp

On 11/19/2010 3:25 PM, Dean Michael Berris wrote:

On Fri, Nov 19, 2010 at 3:11 PM, Joel de Guzman wrote:

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On 11/19/2010 12:10 PM, Dean Michael Berris wrote:

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On Fri, Nov 19, 2010 at 3:22 AM, Christian Henning

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I'm sure this idea already came up but why not let the user have the option of making parts of netlib compile into a lib?

Yes, it's already come up. ;) The real reason is because I don't see which parts of cpp-netlib can be moved into a compiled lib. Most -- I should say "all" -- of the algorithms I implement is generic. Maybe later on I can do that, but only once I see which parts can be moved to a compiled lib. :D

Also, I aimed to do it header-only, which I think I've largely succeeded in doing now. Going the other way looks really hard from where I'm sitting. :D

A good way to start is by separating the implementation files from interface files such that the user can include the interface files from headers and the implementation files from cpp plus template instantiations with the client's actual template types.

Interesting. This sound like a lot of work though.

My problem is that a lot of the types are determined through template metafunctions. I don't have many opaque types lying around that I can move the implementations of to compilable files. I also have a ton of template functions that are marked 'inline' to avoid ORD violations when compiling/linking.

Also, providing the template specializations myself sound like a really bad nightmare. If I didn't aim to support for example a means of supporting std::string, std::wstring, std::vector<char>, CString, QString, and<insert-string-implementation-here> in the messages, I might be able to move implementations over and just support std::string all throughout the library.

I'm sure you can find ways around these (I'd say) trivial problems with some bits of imagination ;-) I can offer a detailed solution, but I don't want to spoil the fun :-P Hesitation is your main obstacle, I would say. Regards, -- Joel de Guzman http://www.boostpro.com http://spirit.sf.net