> The library provides the macro BOOST_ERROR_INFO. Is it possible to
> modify the macro in such a way that successive calls of BOOST_ERROR_INFO
> would add the date in a list? This could be used in order to get infos
> which parts of the code catched the exception.

Yes, I guess that's possible, but I think that what contexts catch
(add BOOST_ERROR_INFO) and rethrow is less useful information than,
for example, the caller stack at the time the exception was first
thrown -- which is the type of info BOOST_ERROR_INFO is designed to
stuff in exceptions.

OTOH, if there is a way to detect a catch _automagically_, I suppose
recording each catch in the exception object would be a good thing.

Emil Dotchevski
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