[Boost-bugs] [Boost C++ Libraries] #4892: boost::make_shared doesn't use r-value ref support unless variadic templates are also supported

Subject: [Boost-bugs] [Boost C++ Libraries] #4892: boost::make_shared doesn't use r-value ref support unless variadic templates are also supported
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-11-24 10:34:18

#4892: boost::make_shared doesn't use r-value ref support unless variadic
templates are also supported
-----------------------------------+----------------------------------------
 Reporter:  arnetheduck@…          |       Owner:  pdimov   
     Type:  Bugs                   |      Status:  new      
Milestone:  To Be Determined       |   Component:  smart_ptr
  Version:  Boost 1.45.0           |    Severity:  Problem  
 Keywords:                         |  
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 Currently, boost::make_shared doesn't make use of r-value references
 unless there is also support for variadic templates ("#if defined(
 BOOST_HAS_VARIADIC_TMPL ) && defined( BOOST_HAS_RVALUE_REFS )").

 At least one popular compiler supports rvalue refs but unfortunately not
 variadic templates (MSVC 10.0), so the implementation falls back on the
 pre-c++0x implementation.

 The attached file improves the situation by adding make_shared support for
 up to 10 perfectly forwarded constructor arguments.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/4892>
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