[Boost-bugs] [Boost C++ Libraries] #10852: boost format operator % won't accept dereference of volatile

Subject: [Boost-bugs] [Boost C++ Libraries] #10852: boost format operator % won't accept dereference of volatile
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-12-04 21:43:55

#10852: boost format operator % won't accept dereference of volatile
------------------------------+---------------------------
 Reporter:  paul.d.rose@…     |      Owner:  samuel_krempp
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  format
  Version:  Boost 1.56.0      |   Severity:  Regression
 Keywords:  format volatile   |
------------------------------+---------------------------
 struct A{
     A() : a(9) {}
     int a;
 };
 A a;
 A volatile *pva = &a;

   std::cout << boost::format("%d") % pva->a << std::endl;

 This worked in 1_54 but fails in 1_56 with error:

 format/feed_args.hpp:135:47: error: invalid conversion from 'volatile
 void*' to 'const void*'


 Can work around this with cast:
   std::cout << boost::format("%d") % (int)pva->a << std::endl;
 but should not have to.  The appearance to the user is pass by value.

 Running linux with g++ 4.6.2 and 4.8.2

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10852>
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