[Cfp-interest 1976] Re: WG14 IEEE 754-C binding meeting minutes2021/04/13 -- correct rounding
Jim Thomas
jaswthomas at sbcglobal.net
Wed Apr 14 15:42:06 PDT 2021
There are also conversions to consider — between floating types, between floating and integer types, and between floating types and character sequences. And there are math functions (e.g. sqrt) that might be considered too.
Jim Thomas
> On Apr 14, 2021, at 12:03 PM, Fred J. Tydeman <tydeman at tybor.com> wrote:
>
> On Wed, 14 Apr 2021 16:14:49 +0100 Mike Cowlishaw wrote:
>>
>> Re:
>>
>>> *AI*: Any: CFP1934: Look into adding in that basic math
>>> operations (+, -, *, /) should be correctly rounded.
>>
>> It looks as though the primary cases of these where 'should be correctly
>> rounded' might be in order are in 6.5.5 (paras 5 & 6) and 6.5.6 (paras 6 &
>> 7).
>
> Also, 5.2.4.2.2#8
> The accuracy of the floating-point operations (+ ,- , * , / ) and of the library functions in <math.h>
> and <complex.h> that return floating-point results is implementation-defined, ....
>
>
> ---
> Fred J. Tydeman Tydeman Consulting
> tydeman at tybor.com Testing, numerics, programming
> +1 (702) 608-6093 Vice-chair of PL22.11 (ANSI "C")
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