Er, ok. I now have an answer saying "ledger uses floats; you are hosed." and "ledger does not use floats; you are hosed".
Is there a way to use the -d option to fix this? Charles On Friday, August 23, 2013 11:15:00 AM UTC-7, John Wiegley wrote: > > >>>>> Jeffrey Brent McBeth <[email protected] <javascript:>> writes: > > > On Thu, Aug 22, 2013 at 09:53:26PM -0700, Charles Merriam wrote: > >> It's a nice idea. I have no four digit amounts; this gives no output. > > >> ledger -w -f 2013.led register | grep "\.\d\d[1-9]" My guess is ledger > is > >> doing floats instead of paired fixed precision, so some amount doesn't > >> represent well in IEEE exactly, triggers the longer field, and then > rounds > >> back to zero ten-thousandths of a penny anyway. > > > The ledger docs are pretty explicit in the fact that they use floats for > > amounts. I just grepped through the code, and there are astoundingly > few > > instances of the word float or double in the code, and they appear at > first > > blush to all be related to size calculations rather than storing any > > amounts. > > Ledger *NEVER* uses floats for monetary values, but only for imprecise > things > where loss of precision does not matter. Rather, Ledger uses > infinite-precision rational numbers, which are rendered to floating-point > at > display time, in order to round the value to a fixed number of decimal > places. > > This is actually problematical if you want to do "fixed-point accounting", > which rounded amounts are intentionally shaved; but it is a benefit if you > wish to never lose track of fractions of commodities, no matter how small. > > John > -- --- You received this message because you are subscribed to the Google Groups "Ledger" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
