Why don't we switch to C like floating pointed arithmetic instead of automatic expansion to reals?

[Ilya Yaroshenko via Digitalmars-d]

On Saturday, 6 August 2016 at 21:56:06 UTC, Walter Bright wrote:
> On 8/6/2016 1:06 PM, Ilya Yaroshenko wrote:
>> Some applications requires exactly the same results for 
>> different architectures
>> (probably because business requirement). So this optimization 
>> is turned off by
>> default in LDC for example.
>
> Let me rephrase the question - how does fusing them alter the 
> result?

The result became more precise, because single rounding instead 
of two.