On 01/20/2017 12:00 PM, Ted Mielczarek wrote:
On Thu, Jan 19, 2017, at 07:00 PM, gsquel...@mozilla.com wrote:
I think the point is that it's not obvious that "must check the return
value" is a sufficiently-dominant common case for arbitrary return values.
FWIW, Rust took the [must_use] rather than [can_ignore] approach too.
That's unfortunate. But real-world data must trump my idealism in the
end. :-)
The Rust case is helped by the fact that `Result` is the defacto type
for returning success or error, and it's effectively `must_use`. We
don't have a similar default convention in C++.
We have
http://searchfox.org/mozilla-central/rev/30fcf167af036aeddf322de44a2fadd370acfd2f/mfbt/Result.h#173
we just have to make it the default convention now.
--
Nicolas B. Pierron
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