[Boost-bugs] [Boost C++ Libraries] #13551: m_storage may be used uninitialized in this function

Subject: [Boost-bugs] [Boost C++ Libraries] #13551: m_storage may be used uninitialized in this function
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-04-30 09:02:58

#13551: m_storage may be used uninitialized in this function
-------------------------------+-------------------------------
 Reporter:  lukasz.czajczyk@…  |      Owner:  Fernando Cacciola
     Type:  Bugs               |     Status:  new
Milestone:  To Be Determined   |  Component:  optional
  Version:  Boost 1.66.0       |   Severity:  Regression
 Keywords:                     |
-------------------------------+-------------------------------
 Hi, in 1.66 was the following feature introduced: On newer compilers
 optional is now trivially-copyable for scalar Ts. This uses a different
 storage (just T rather than aligned_storage). We require the compiler to
 support defaulted functions.

 Gcc 4.4.7 in C++98 mode is incorrectly recognizes because Boost tries to
 use tc_optional_base however without C++11 defaulted functions are not
 working. This is causing boost::optional<unsigned
 char>::<anonymous>.boost::optional_detail::tc_optional_base<unsigned
 char>::m_storage’ may be used uninitialized in this function warning.

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Ticket URL: <https://svn.boost.org/trac10/ticket/13551>
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