simon, The IEEE Standard for Floating-Point Arithmetic (IEEE 754) defines sets of binary and decimal floating-point data, which consist of finite numbers (including signed zeros and subnormal numbers), infinities, and special "not a number" values (NaNs).
Signed Zero: https://en.wikipedia.org/wiki/Signed_zero Peter On Sunday, March 12, 2017 at 2:10:30 PM UTC-4, simon place wrote: > > when trying to compare two floats, for testing, i ran into the usual > problems with rounding. > > so, i thought, a nice way out would be to compare their fixed precision > formatted strings. > > which works except, fmt "%f" fixed precision still contains an unnecessary > rounding issue; > > when the float is very near zero, (it can be slightly above or below > depending on rounding), fmt adds a '-' or it doesn't, meaning you get for > example "-0.00000" > > why have just one value, zero, at which two floats, which are the same to > the precision, print differently? > > this doesn't seem to be 'human readable' output, no human would add the > unnecessary '-'. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
