Just found this:
https://trulyfinancial.com/blog/lowest-currencies-2022/ The Indonesian
rupiah is apparently only the third weakest currency in the world with
14,365.5 to the dollar. The Iranian Rial is 42,250 to the dollar, but
at 1/3 the value of the rupia, it looks like ten digits should still be
enough.
On 2022.11.15 16:55, Chris via KMyMoney-devel wrote:
Good point I hadn't considered currency exchange.
This is why you ask why something was implemented that way and not
assume its unnecessary.
Yes I am talking to you Elon ;)
Chris
On 16/11/2022 2:12 am, Thomas Baumgart via KMyMoney-devel wrote:
On Dienstag, 15. November 2022 09:08:44 CET Chris via KMyMoney-devel
wrote:
Thanks
I have always used integer's, never floats or doubles, I realised
back in
the 90's that was a mistake when implementing credit card
transactions.
Rounding errors bite hard.
I have always decided at the start of a project what was the maximum
precision needed, usually 2 decimal places but occasionally more. I
can see
with kmymoney 4 digits is the best because I believe that is normal
for
shares. however I don't do shares so I could be wrong.
Just looked it up, shares below $1.00 is to 4 decimal places, 2
places
otherwise.
I can see storing it using numerator denominator is more flexible.
4 digits is not enough if it comes to currency exchange. We do have
a user
that converts between (I believe) Indonesian Rupia and Euros a lot
and
needs at least 10 digits of precision for the price to get correct
results.
