[Boost-bugs] [Boost C++ Libraries] #9088: I/O Exception state & status savers may cause std::terminate in C++11

Subject: [Boost-bugs] [Boost C++ Libraries] #9088: I/O Exception state & status savers may cause std::terminate in C++11
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-09-07 13:09:13

#9088: I/O Exception state & status savers may cause std::terminate in C++11
------------------------------+----------------------
 Reporter:  dlwalker          |      Owner:  dlwalker
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  io
  Version:  Boost 1.54.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+----------------------
 The `boost::io::basic_ios_iostate_saver` and
 `boost::io::basic_ios_exception_saver` class templates in file
 "boost/io/ios_state.hpp" alter the I/O exception state and trigger-mask,
 respectively, in their constructors and destructors.  When a change in
 either makes the two statuses have a non-zero result when combined with
 bitwise-and, an exception is thrown.

 A potentially throwing destructor is problematic enough, but C++11 adds a
 new source of trouble.  C++11 declares all destructors with no exception
 specification to be `noexcept` by default, which makes all imported
 pre-C++11 types with a throwing destructor to call `std::terminate` if
 they throw.  The (immediate) fix would be to add a `noexcept(false)`
 specification to those destructors when used in C++11 mode.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9088>
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