[C++14] implement [[deprecated]].

[Paolo Carlini]

On 10/22/2013 02:28 PM, Ed Smith-Rowland wrote:
> I think this is pretty easy - gnu::deprecated has the same semantics.
Unfortunately however, gnu::deprecated has a number of long standing 
issues (just search Bugzilla), personally I'm not sure we want to say 
everybody that we have got [[deprecated]] implemented, until those are 
solved. Just my personal opinion.

Paolo.