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Re: [std-proposals] uint_nopro_fast32_t : Types in <cstdint> that don't promote

From: Thiago Macieira <thiago_at_[hidden]>
Date: Fri, 31 Mar 2023 11:14:49 -0300
On Friday, 31 March 2023 10:42:41 -03 Thiago Macieira via Std-Proposals wrote:
> On Friday, 31 March 2023 08:47:31 -03 Frederick Virchanza Gotham via Std-
> Proposals wrote:
> > Sometimes I shy away from the integer types in <cstdint>, for example
> > sometimes I use 'long unsigned' instead of 'uint_fast32_t', because
> > the latter might promote to a signed integer.
> I think this is a good idea. However, to make it a much stronger one, you
> may want to focus on 8- and 16-bit types today, that do promote to int
> (which in turn is usually 32 bits wide).
> In writing your proposal, you may want to brush up on the specifics of what
> "integer promotion" (i.e., from lesser-ranked integers to int) and "integer
> conversion" mean, so you don't accidentally imply the wrong thing. You'll
> also want to link to the Extended Integers content from C23 and C++23,
> which created the precedent of integers that have different promotion and
> conversion rules -- specifically, the Extended Floating-point paper added
> types smaller than double that don't promote to double either.

Reading through the rest of the emails, it looks like this may be _BitInt

Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
   Software Architect - Intel DCAI Cloud Engineering

Received on 2023-03-31 14:14:53