Re: [Boost.Config] Detect compiler support for std::current_exception

From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2019-05-27 17:27:28

On 5/27/19 7:45 PM, dariomt--- via Boost wrote:
> Hi all,
> 
> I'm working on a Boost.Exception issue [1]  and I need to detect compiler
> support of std::current_exception. In the issue there is a suggestion to
> use #if __cplusplus > 199711L but that does not work for my use case
> (VS2015 reports __cplusplus = 199711L).

MSVC defines _MSVC_LANG for this[1]. At least, it used to. However, it 
would be cleaner to have a dedicated macro in Boost.Config for this.

> Is it possible to add a config macro for this?
> Or is there a good enough existing macro I can use?

I don't think there is. Something like BOOST_NO_CXX11_HDR_EXCEPTION 
would be useful.

[1] 
https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=vs-2019