On 6/28/14, 9:36 PM, H. S. Teoh via Digitalmars-d wrote:
On Sat, Jun 28, 2014 at 05:16:53PM -0700, Walter Bright via Digitalmars-d wrote:
On 6/28/2014 3:57 AM, Russel Winder via Digitalmars-d wrote:
[...]
Or indeed when calculating anything to do with money.
You're better off using 64 bit longs counting cents to represent money
than using floating point. But yeah, counting money has its own
special problems.
For counting money, I heard that the recommendation is to use
fixed-point arithmetic (i.e. integer values in cents).
A friend who works at a hedge fund (after making the rounds to the NYC
large financial companies) told me that's a myth. Any nontrivial
calculation involving money (interest, fixed income, derivatives, ...)
needs floating point. He never needed more than double.
Andrei
