Re: Warning from Boost.Exception

From: Emil Dotchevski (emildotchevski_at_[hidden])
Date: 2019-10-14 19:28:43

On Mon, Oct 14, 2019 at 9:36 AM Paul A Bristow via Boost <
boost_at_[hidden]> wrote:

> Using Clang 9 on Windows  b2 toolset-clang-linux cxxstd=2a  .
>
> I am seeing lots of these warnings
>
> In file included from ..\..\..\boost/test/included/unit_test.hpp:23:
> In file included from ..\..\..\boost/test/impl/execution_monitor.ipp:37:
> In file included from
> ..\..\..\boost/exception/diagnostic_information.hpp:11:
> ..\..\..\boost/exception/info.hpp:134:21: warning: delete called on
> non-final
> 'boost::exception_detail::error_info_container_impl'
>  that has virtual functions but non-virtual destructor
>
> [-Wdelete-non-abstract-non-virtual-dtor]
>                     delete this;
>                     ^
> It seems that trying to supress is ineffective with
>
>   -Wno-delete-non-abstract-non-virtual-dtor
>
> Perhaps by design?
>
>
> https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html#wdele
> te-non-abstract-non-virtual-dtor
> <https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html#wdelete-non-abstract-non-virtual-dtor>
> -Wdelete-non-abstract-non-virtual-dtor
> <
> https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html>
>
> Diagnostic text:
> warning:        delete
>
> destructor
>
>          called on non-final B that has virtual functions but non-virtual
> destructor
> -Wdelete-non-virtual-dtor
> <
> https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html>
>
> Some of the diagnostics controlled by this flag are enabled by default.
> Controls -Wdelete-abstract-non-virtual-dtor
> <
> https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html>
> ,
> -Wdelete-non-abstract-non-virtual-dtor
> <
> https://releases.llvm.org/9.0.0/tools/clang/docs/DiagnosticsReference.html>
> .
> Should I be concerned about this?
>

You shouldn't be concerned about this and also you shouldn't be getting
warnings. What platforms, what command line?