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STD-DISCUSSION |
Subject: Re: What makes bool{2} ill-formed?
From: Matthew Woehlke (mwoehlke.floss_at_[hidden])
Date: 2020-08-06 13:46:25
On 06/08/2020 11.30, Florian Weimer via Std-Discussion wrote:
> I don't think there is another meaningful way to get an int into a bool.
auto x = static_cast<bool>(2);
auto x = !!2;
auto x = (2 ? true : false);
I don't see the problem here; `bool{2}` is invalid (narrowing) for the
same reason `char{65536}` is invalid. (Numerically speaking, the set of
values which `bool` can represent is {0, 1}.)
-- Matthew
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