Re: [Boost-bugs] [Boost C++ Libraries] #12027: is_base_of<B, D> should work ehen B is incomplete

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12027: is_base_of<B, D> should work ehen B is incomplete
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-02-03 16:09:22

#12027: is_base_of<B, D> should work ehen B is incomplete
-------------------------------+--------------------------
  Reporter:  akrzemi1          |      Owner:  John Maddock
      Type:  Bugs              |     Status:  closed
 Milestone:  To Be Determined  |  Component:  type_traits
   Version:  Boost 1.61.0      |   Severity:  Problem
Resolution:  wontfix           |   Keywords:
-------------------------------+--------------------------
Changes (by John Maddock):

 * status:  new => closed
 * resolution:   => wontfix

Comment:

 I've been having a look at this and:

 * There is no restriction on B being complete as long as we have a working
 compiler intrinsic that supports this.
 * The Oracle compiler supports the `__oracle_is_base_of intrinsic`, but
 it's use is even more restricted/broken.  So we don't use it, as it makes
 things even worse than they are already.

 Sorry, but I don't see any easy way to fix this.

-- 
Ticket URL: <https://svn.boost.org/trac10/ticket/12027#comment:2>
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