Re: Diagnostic improvements in 1.78/1.79

From: Gavin Lambert (boost_at_[hidden])
Date: 2022-02-15 04:32:10

On 15/02/2022 17:25, Emil Dotchevski wrote:
> I know it's why you did it by reference, but this handler can be useful for
> other libraries also, as well as for e.g. logging, etc. It's a chance to do
> something before a Boost library throws.

Why would such a library call the callback without just using 
throw_exception itself?  And throw_exception guarantees that the 
boost::exception exists.