Re: [Boost-bugs] [Boost C++ Libraries] #12987: boost::filesystem::exists crashes

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12987: boost::filesystem::exists crashes
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-04-26 16:31:35

#12987: boost::filesystem::exists crashes
-------------------------------+------------------------
  Reporter:  Leinad            |      Owner:  bemandawes
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  filesystem
   Version:  Boost 1.64.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+------------------------

Comment (by Leinad):

 Yes that's correct. I think it's a c++11 feature, but we use this already
 in path.cpp:

 {{{
  std::locale& path_locale()
   // std::locale("") construction, needed on non-Apple POSIX systems, can
 throw
   // (if environmental variables LC_MESSAGES or LANG are wrong, for
 example), so
   // path_locale() provides lazy initialization via a local static to
 ensure that any
   // exceptions occur after main() starts and so can be caught.
 Furthermore,
   // path_locale() is only called if path::codecvt() or path::imbue() are
 themselves
   // actually called, ensuring that an exception will only be thrown if
 std::locale("")
   // is really needed.
   {
     // [locale] paragraph 6: Once a facet reference is obtained from a
 locale object by
     // calling use_facet<>, that reference remains usable, and the results
 from member
     // functions of it may be cached and re-used, as long as some locale
 object refers
     // to that facet.
     static std::locale loc(default_locale());
 #ifdef BOOST_FILESYSTEM_DEBUG
     std::cout << "***** path_locale() called" << std::endl;
 #endif
     return loc;
   }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12987#comment:5>
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