std.data.json formal review

Matthias Bentrup via Digitalmars-d digitalmars-d at puremagic.com
Fri Aug 14 04:44:32 PDT 2015


On Friday, 14 August 2015 at 09:20:14 UTC, Ola Fosheim Grøstad 
wrote:
> On Friday, 14 August 2015 at 08:03:34 UTC, Walter Bright wrote:
>> 1. 'real' has enough precision to hold 64 bit integers.
>
> Except for the lowest negative value…
>
> (it has only 63 bits + floating point sign bit)

actually the x87 format has 64 mantissa bits, although the bit 63 
is always '1' for normalized numbers.


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