Jaap Suter wrote:
I would like to second the following:
"1. The overloads of hash_value for STL containers forces the implementation to include <vector>, <list>, etc., which makes the header a little heavier than desired."
I'd say it's not a 'little' heavier but a lot heavier. Can we not put the extensions in their own header files; vector_hash.hpp or something?
No, this is not desirable, but the main header can probably be made to include granular <boost/hash/*.hpp> headers.
Not everybody has all these containers in a precompiled header already.
FWIW, I never use precompiled headers, and have never had problems with standard includes. That's because most translation units end up including most of the standard library anyway. But this may be just me.