Re: [boost] [Typeof] Why not use decltype?

From: Doug Gregor (dgregor_at_[hidden])
Date: 2007-07-27 15:49:37

On Jul 27, 2007, at 3:10 PM, Arkadiy Vertleyb wrote:

> "Doug Gregor" <dgregor_at_[hidden]> wrote
>
>> I have updated the Boost Config library (on the CVS trunk)
>> to contain BOOST_HAS_DECLTYPE, indicating the presence of decltype. A
>> sufficiently-motivated person could certainly use this macro to give
>> a simple implementation of decltype for C++0x compilers...
>
> Could you ellaborate?  It's not quite clear how to implement  
> decltype on
> compilers that don't have it...  which means on any compiler other  
> than the
> latest gcc that you mentioned... or am I missing something?

I meant, why not have the typeof library use decltype when it is  
available? You can just predicate on BOOST_HAS_DECLTYPE, and of  
course test with the latest GCC 4.3.

        - Doug