Re: [boost] expected/result/etc

Subject: Re: [boost] expected/result/etc
From: Niall Douglas (s_sourceforge_at_[hidden])
Date: 2016-01-29 08:37:27

On 28 Jan 2016 at 16:57, Emil Dotchevski wrote:

> Let's take socket errors for example, which on POSIX are communicated by
> the OS through errno, while on Windows there is the GetLastError function.
> Using the Boost Exception approach, you would always store the errno into
> any socket exception object, and on Windows you'd also store the
> GetLastError code. At the catch site, regardless of the platform, you can
> put in logic that takes correct action based on the presence or absence of
> any particular error_info:

Doesn't std::system_error already do this for us, and it's already in 
the standard and it also allows arbitrary domain specific error 
coding?

Niall

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