Re: [boost] How to detect if f() returns void or not?

Subject: Re: [boost] How to detect if f() returns void or not?
From: David Abrahams (dave_at_[hidden])
Date: 2009-12-14 23:01:11

On Dec 14, 2009, at 8:40 PM, Edward Diener wrote:

> Eric Niebler wrote:
>> Frédéric Bron wrote:
>>> I would like to detect if the return type of a function is void or not
>>> within C++03 standard?
>> <snip>
>> I solved this problem once while writing a different trait and documented it here:
>> http://www.boost.org/doc/libs/1_41_0/doc/html/proto/appendices.html#boost_proto.appendices.implementation.function_arity
> 
> It's extremely clever, as others have noted, but I am wondering if there is any website, or possibly newsgroup, devoted to advanced TMP techniques such as yours.

We had a short discussion of the limitations of that technique here: http://cpp-next.com/archive/2009/10/this-week-in-boost/comment-page-1/#comment-228

--
David Abrahams
BoostPro Computing
http://boostpro.com