Re: [Boost-users] [foreach] gcc 4.5 & 4.6 compiler error with BOOST_FOREACH(auto&& ...) loop

Subject: Re: [Boost-users] [foreach] gcc 4.5 & 4.6 compiler error with BOOST_FOREACH(auto&& ...) loop
From: Sebastian Redl (sebastian.redl_at_[hidden])
Date: 2011-03-05 08:38:17

On 05.03.2011, at 14:11, Mathias Gaunard wrote:

> On 05/03/2011 03:13, Nathan Ridge wrote:
> 
> 
>> The native range-based for version, however, compiles fine with gcc 4.6 (which is the only version to support it):
>> 
>> #include<boost/foreach.hpp>
>> 
>> template<typename>
>> void f()
>> {
>>     int A[6];
>>     for(auto&&  x : A)
>>         ;
>> }
> 
> Why does this compile? I don't see how any rvalue can be available in that context.

Wouldn't auto deduction make x an lvalue reference here?

Sebastian