Thank you guys. Regards, Igor Escobar *Software Engineer * + http://blog.igorescobar.com + http://www.igorescobar.com + @igorescobar <http://www.twitter.com/igorescobar> On Thu, Sep 15, 2011 at 6:32 PM, Shawn McKenzie <nospam@xxxxxxxxxxxxx>wrote: > On 09/15/2011 04:07 PM, Igor Escobar wrote: > > Anyone can explain this? > > > > https://gist.github.com/1220404 > > > > Part of the code are in portuguese so... > > iguais = equal > > diferentes = different > > > > Regards, > > Igor Escobar > > *Software Engineer > > * > > + http://blog.igorescobar.com > > + http://www.igorescobar.com > > + @igorescobar <http://www.twitter.com/igorescobar> > > > > 1. Obviously because of the issues with floating point precision these > are stored as the same float, a la your next example. > > 2. Using bc math for binary calculations on string representations of a > number overcomes the problems in 1. > > 3. This one is peculiar, but it seems that since they are numeric > strings that they are being juggled to float for the comparison since > using == there is no type checking. Using === yields a different > result, presumably because forcing a type check compares them as > strings. Use strcmp() to overcome this. > > 4. Do I need to explain this one? > > -- > Thanks! > -Shawn > http://www.spidean.com >
