[boost] [Config] N3276 decltype support detection missed for VC++12 (Ticket #9410)

Subject: [boost] [Config] N3276 decltype support detection missed for VC++12 (Ticket #9410)
From: Michel Morin (mimomorin_at_[hidden])
Date: 2013-11-20 06:39:50

As you know, VC++12 (aka 2013) completed N3276 decltype support.
(See, e.g.
  http://msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx
  http://thread.gmane.org/gmane.comp.lib.boost.devel/233752/focus=239118 )

Unfortunately the detection code for VC++12's N3276 decltype support
hasn't been updated yet, as reported in
  #9410 (decltype N3276 for MSVC12 + compile fix for tests)
  https://svn.boost.org/trac/boost/ticket/9410

Ticket #9410 has a patch for this issue.
The patch also fixes the test code of Boost.Config.

Regards,
Michel