Re: [Boost-users] Sequence of Types, What For?

"Terry G" writes:

I've just finished reading C++ Template Metaprogramming again. I just don't get it.

Why would someone use a type container?

I have used enable_if, along with some of the logic functions for managing an overload set. Otherwise, I'm clueless.

I'd really like a reference to an MPL primer or some case studies.

The book contains a case study in which type sequences are used to describe the rows of a state machine's transition table. Was that not a sufficient motivating case?

Too much pain with very little gain.

What, specifically, do you find painful?

Time to ask for help. Rereading this, it sounds negative. Really, I think the MPL is really cool!

Cool; how can we help? -- Dave Abrahams Boost Consulting www.boost-consulting.com