Vincent Snijders wrote: > Funky Beast schreef: >> Hi, >> >> When trying to get the number of months between the following dates: >> 01-06-2009 and 01-08-2008 >> >> MonthsBetween returns: 9 months. >> >> That is clearly wrong (fundamentally counting with my fingers yields >> 10 months). >> Looking at the function in dateutils.inc, I copied the function >> implementation to do a test. >> Now, if I strip away Trunc() from the function, the result is: >> 9.98767967. >> Trunc() simply strips away the decimals behind, which returns: 9. >> >> I'm wondering if Round() should be used instead of Trunc(). >> > > For such easy question, I use google: > http://lmgtfy.com/?q=monthsbetween > > http://www.freepascal.org/docs-html/rtl/dateutils/monthsbetween.html > states that "This number is an approximation, based on an average number > of days of 30.4375 per month". 9 is approximately 10, so the is behavior > you see is as documented ;-) > > Vincent > _______________________________________________ > fpc-pascal maillist - > fpc-pascal-pd4fty7x32k2wbthl531ywd2fqjk+...@public.gmane.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal >
I did read that, but I'm just wondering isn't 9.98767967 more approximate to 10 than 9? Regards, Funky Beast _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
