Re: [boost] C++11 Metaprogramming

Subject: Re: [boost] C++11 Metaprogramming
From: Dave Abrahams (dave_at_[hidden])
Date: 2012-04-03 13:20:15

on Sun Apr 01 2012, Olivier Grant <olivier.grant-AT-gmail.com> wrote:

> Hi Dave,
>
> That's going to be an interesting presentation. Here is a small piece of
> code that allows to generate a traits structure that determines if a call
> can be made on an object with a specific function name and specific
> arguments and return value :
>
> https://gist.github.com/2276393
> (compile with : g++ -std=c++0x -Wall -o has_callable has_callable.cpp)
>
> This was not possible in C++03, or at least not completely possible, and
> the code is much simpler with C++11 for the cases where it was possible as
> well.

Yep, I see.  However, I also have some questions about the utility of
such traits.  As I mentioned to Mathias, structural matching is always
susceptible to false positives.  What do you use this for?

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com