[cfp-interest 3630] Re: name of bfloat16 functions

[Paul Zimmermann]

thank you Jim. We'll consider using the _bf16 suffix in CORE-MATH.

Paul

> From: Jim Thomas <jaswthomas at sbcglobal.net>
> Date: Tue, 23 Sep 2025 10:26:02 -0700
> Cc: CFP <cfp-interest at ucbtest.org>,
>  lntue at google.com
> 
> Hi Paul,
> 
> CFP looked at this. We don’t know of any standard for bfloat16 function names. We don’t have a studied recommendation. “_bf16" was one suggestion. The “h” prefix idea goes against the style of ilogb, lrint, llround, etc. which uses a prefix to indicate a return type that differs from the parameter type indicated by the suffix.
> 
> - Jim 
> 
> > On Sep 22, 2025, at 11:24 PM, Paul Zimmermann <Paul.Zimmermann at inria.fr> wrote:
> > 
> >       Hi,
> > 
> > I got no answer so far to my question about the name of bfloat16 functions (dated Sep 04).
> > Is that question planned for a future meeting? Tue Ly told me that one approach would be
> > to use the _bf16 suffix, for example log_bf16, which would avoid the ambiguity for
> > logbf16 with the bf16 suffix (if there is no standard already).
> > 
> > Paul
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