Re: std.math performance (SSE vs. real)

[David Nadlinger via Digitalmars-d]

On Sunday, 29 June 2014 at 19:18:49 UTC, Walter Bright wrote:
On 6/29/2014 11:13 AM, Russel Winder via Digitalmars-d wrote:
Very definitely so. Fixed point or integer arithmetic for 
simple
"household" finance fair enough, but for "finance house" 
calculations
you generally need 22+ significant denary digits to meet with 
compliance
requirements.

Doubles are only good to 17 digits, and even that 17th digit is 
flaky.

The 11 extra bits in an x87 real wouldn't get you to 22 either, 
though. ;)

David