id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13227	exception.hpp : disable false warning C4265 given by Visual Studio	Pascal Thomet <pthomet@…>	Emil Dotchevski	"Hi, 

MSVC falsely report a missing virtual destructor inside exception.hpp
Would it be possible to add a ""pragma warning (disable:4265)"" in this file ?
This will *not* happen with the default settings of Visual Studio : it happens when trying
to raise the warning level (/we4265 : treat ""misssing virtual destructor"" as an error)

Steps to reproduce the problem :

- Compile the following program:
{{{

#include <string>
#include <iostream>
#include <boost/optional/optional.hpp>

int main(int argc, char **argv)
{
  boost::optional<std::string> name;
  if (argc > 1)
    name.reset(argv[1]);

  if (name.is_initialized())
    std::cout << ""Hello, "" << name.get() << ""\n"";
  else
    std::cout << ""Hello, world \n"";
  return 0;
}

}}}

- With the following command line :
{{{
  cl hello.cpp /Iboost_1_64_0 /EHa /W3 /we4265
}}}

outputs

{{{

c:\tmp>cl hello.cpp /Iboost_1_64_0 /EHa /W3 /we4265
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.
hello.cpp
boost_1_64_0\boost/exception/exception.hpp(176): error C4265: 'boost::exception_detail::error_info_container': class has virtual functions, but destructor is not virtual
         instances of this class may not be destructed correctly

}}}

For more details, please also refer to https://github.com/ivsgroup/boost_warnings_minimal_demo

The problem occurs with boost 1.64 and 1.62.

Thanks & regards !


"	Bugs	new	To Be Determined	exception	Boost 1.64.0	Problem