Re: [boost] expected/result/etc

Subject: Re: [boost] expected/result/etc
From: Domagoj Saric (dsaritz_at_[hidden])
Date: 2016-01-28 18:44:19

On 28.1.2016. 21:02, Emil Dotchevski wrote:
> Have you considered using Boost Exception? It lets you add arbitrary data
> to exception objects, even after they have been thrown, regardless of their
> type -- see
> http://www.boost.org/doc/libs/release/libs/exception/doc/error_info.html.
> The general idea is to adopt a strategy where the exception objects are
> augmented with any, even platform-specific relevant data, which then the
> catch site can analyze to choose the correct handling.

Hopefully these efforts will bring us to a solution that will do away 
with the, IMO, false dichotomy between "errors" and "exceptions" 
(<system_error> vs <exception>) - rather we will start thinking only 
about "errors"/error objects which can be transfered in two different 
ways - like a ball in a rugby game - it can be passed 'on foot' hand to 
hand or it can be thrown over intermediate players to its final 
destination (only with errors its in reverse - they are mostly 
passed/returned or thrown 'backwards':).
IOW things like error_info will be applicable to 'the' standardized 
error type(s) that functions also return, not just throw.

-- 
"What Huxley teaches is that in the age of advanced technology, 
spiritual devastation is more likely to come from an enemy with a 
smiling face than from one whose countenance exudes suspicion and hate."
Neil Postman