Don't compare floating points. Ever. Now you see why.
Also, don't write loops that calculate a floating point number which
is then tested for equality to exit the loop. Also, it is a bad idea
to test for > or < for exiting unless you know in advance an
accidental equality result will not yield surprising results. In other
other words, don't do that (test for > or <) either.
Jerry
On Feb 26, 2010, at 3:37 AM, ik wrote:
Hello,
I've made a small test:
if (0.1+0.2) = 0.3 then
The only compiler/interpator that actually tells that it equal is FPC.
I've tested it using Javascript (in Firefox), Ruby, Python, C (gcc)
and Perl.
Except FPC, everyone tells that 0.1+0.2 = 0.30000000000000004
Can someone explain how FPC see the result and why others does not
see it like that ?
Thanks,
Ido
http://ik.homelinux.org/
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