[Boost-bugs] [Boost C++ Libraries] #11330: boost::chrono::duration default constructor doesn't initialize rep_

Subject: [Boost-bugs] [Boost C++ Libraries] #11330: boost::chrono::duration default constructor doesn't initialize rep_
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-05-21 18:50:19

#11330: boost::chrono::duration default constructor doesn't initialize rep_
--------------------------------+------------------------
 Reporter:  florent.castelli@…  |      Owner:  viboes
     Type:  Bugs                |     Status:  new
Milestone:  To Be Determined    |  Component:  chrono
  Version:  Boost 1.58.0        |   Severity:  Regression
 Keywords:                      |
--------------------------------+------------------------
 According to the documentation:
 {{{
 constexpr duration();
 Effects: Constructs an object of type duration from
 duration_values<rep>::zero().
 }}}
 The implementation is:
 {{{
 #if  defined   BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
         BOOST_FORCEINLINE BOOST_CONSTEXPR
         duration() : rep_(duration_values<rep>::zero()) { }
 #else
         BOOST_CONSTEXPR duration() BOOST_NOEXCEPT {};
 #endif
 }}}

 So in one side is does initialise to zero, not in the other side. This is
 a breaking change triggering tons of MSan issues in my application (and
 certainly bugs in real applications).
 Setting rep_ to zero() as it is done above fixes the issue for me.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11330>
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