-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Jody Hagins

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Well, in case you don't know MPL (although the primary audience most likely will) you can still have a look at the synopsis and look for the version with non-type template parameter...

I would disagree with you here. Many boost users do not know MPL. Many more probably have a cursory knowledge of MPL, but still need documentation handy to make use of it.

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How do functors fit in here? If a class overloads operator(), is it considered a function type?

No. Is the definition really that unclear ?

How could this probably work if operator() is a function template ?

You can decompose a member function pointer to a parentheses operator (which implies it's already instantiated if it's a template function), though (after deduction or using some kind of typeof operator).

No, it is clear, but I would think that some notes about operator(), boost::function, and boost::lambda would be appropriate, since some folks may want to use them in some ways related to function_types.

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knowledge of the MPL. However, the docs seem to take too much for granted, and make too many assumptions. I'd like to see more detail, especially in the descriptions.

What do you mean with "assumption" ? Preconditions on template arguments ?

I think interface documentation should make the lowest common assumptions. Not everyone is familiar with the types of problems this library is trying to solve. I am sure you are not merely targeting an audience of people who could implement this library themselves, but those who would like this functionality without implementing the details.

FWIW, most boost libraries fail in this regard, in my opinion. Library documentation should make as few assumptions about the knowledge and experience of the user as possible.

[Brian Braatz Writes:] THANK YOU JODY- I was going to say that (grin). Allow me to add a suggestion. PICK YOUR TARGET person's skills. And then write your docs to that person. I would advocate - if you can pull it off- think about someone you know who has 2-3 years CPP experience. Think about how you would communicate your library to that person. Walk them through using the library and solving problems with the library. Assume the user knows VERY LITTLE about metaprogramming etc. Hope that helps, and thank you Jody for spending the time to write up your feedback :)