> -----Original Message----- > From: Henri Yandell [mailto:flame...@gmail.com] > Sent: Wednesday, January 12, 2011 11:29 > To: Commons Developers List > Subject: Re: LANG - useful to have float/double equals method? > > -1 on enhancements in LANG 2.x; by which I mean that I personally am > not interested in spending effort on 2.x being anything other than a > critical bugfix legacy version.
>2.x being anything other than a > critical bugfix legacy version. +1, let's focus on getting 3.0 out! :) Gary > > Hen > > On Wed, Jan 12, 2011 at 8:21 AM, sebb <seb...@gmail.com> wrote: > > On 12 January 2011 15:31, Ted Dunning <ted.dunn...@gmail.com> wrote: > >> Why aren't the comparison methods in java (since 1.4) good enough? > > > > 1) LANG 2.x targets 1.3 > > > > 2) compare does not take into account that floats/doubles are inexact, > > so some tolerance is needed. > > > > See http://www.cygnus- > software.com/papers/comparingfloats/comparingfloats.htm > > for useful explanation. > > > > Furthermore, both compare() and equals() treat +0 and -0 as being unequal. > > > >> > http://download.oracle.com/javase/1.4.2/docs/api/java/lang/Double.html#compare > (double, > >> double) > >> > >> > http://download.oracle.com/javase/1.4.2/docs/api/java/lang/Float.html#compare( > float, > >> float) > >> > >> On Wed, Jan 12, 2011 at 3:15 AM, sebb <seb...@gmail.com> wrote: > >> > >>> Would it be useful to add an equals method for float/double? > >>> > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > > For additional commands, e-mail: dev-h...@commons.apache.org > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
