Re: [boost] range/iterators/algorithms return type deduction (was: Re: range_ex: status?)

From: Daniel Walker (daniel.j.walker_at_[hidden])
Date: 2008-06-24 13:07:44

On Tue, Jun 24, 2008 at 12:51 PM, Daniel Walker
<daniel.j.walker_at_[hidden]> wrote:
> On Tue, Jun 24, 2008 at 12:12 PM, Mathias Gaunard
> <mathias.gaunard_at_[hidden]> wrote:
>> Steven Watanabe wrote:
>>> Can't you use result_of?
>>
>> As far as I can see, the current boost::result_of implementation doesn't
>> use decltype or typeof.
>
> The boost::result_of on svn trunk uses decltype when
> BOOST_HAS_DECLTYPE is defined. This happens automatically for gcc
> versions after 4.2.

Correction - for gcc > 4.2, the boost::result_of on svn trunk uses
decltype only when you compile with -std=c++0x. It uses the old TR1
heuristic otherwise.

Daniel Walker