On Mon, Apr 11, 2011 at 5:07 PM, Krzysztof Czainski <1czajnik@gmail.com>wrote:
I love this! ;-)
Another drawback is the necesicy to use the typename keyword, which suggests at first glance, that this is a type template parameter, while it actually is a constant template parameter. The fact, that boost::enabler is hidden from user view, so the user can't see it isn't a type, doesn't help.
For an alternative without boost::enabler, how about: typename boost::enable_if< boost::is_arithmetic<T>, int >::type = 0
Regards Kris
That's good too. I guess whoever maintains boost.Enable_If could make the call as to what to suggest. The only thing I kind of like about the boost::enabler version is that it's extremely unlikely that it would conflict with another template declaration as pretty much no one ever uses void*& template parameter types in practice. It is rather odd to see though. -- -Matt Calabrese