[boost] Request for enable_if.hpp

From: Eric Friedman (ebf_at_[hidden])
Date: 2003-12-05 04:03:57

Jaako, Jeremiah,

Can we add conditional preprocessor guards around the contents of the 
enable_if.hpp header so that the templates are only defined on 
supporting compilers?

Particularly troubling is that inclusion on compilers without template 
partial specialization results in parsing errors -- that is, even if 
enable_if is never used.

Another option: provide dummy declarations that always fail on 
unsupported platforms.

Thanks,
Eric