Subject: Re: [boost] Noexcept
From: Gavin Lambert (gavinl_at_[hidden])
Date: 2017-06-14 23:28:58
On 15/06/2017 07:52, Richard Hodges wrote:
> If developers do not understand RAII, then an afternoon of training can solve that.
>
> RAII is the foundation of correct c++. It is the fundamental guarantee of deterministic object state. A program without RAII is not worthy of consideration. The author may as well have used C.
>
> Perhaps there is an argument that says that RAII adds overhead to a program’s footprint. If things are that tight, fair enough.
Given that RAII is so fundamental to exception safety, it's surprising
that there isn't a vocabulary execute-lambda-inside-destructor type (eg.
"guard") in the STL, to replace cleanup/try-finally style code.
Granted, it's simple to write one yourself, but that seems like a poor
rationalisation to omit it, especially once lambdas became standard.
I suspect that the lack of such a type is probably a significant reason
exception-unsafe code ends up surviving -- it's more effort to write
RAII wrappers for code that you're not really expecting to encounter
exceptions in, even though you should.