Faster than FloatToStr command...?

thanks Sinisa. Regarding the Format function - I won't know what size the real number will be beforehand. It could be 12.8 or 12228763521.65255362. So would I be able to use a Format statement like Format('%30.20f') ?

I looked briefly at the fastcode page. Do you know if there's a "FloatToStr" function there?

Thanks!
    Shawn

No, there is not FloatToStr (yet) on fastcode page.
I don't suggest to show more than 8 decimal places - and this should be fine too:

Label1.Caption := Format('%.8f', [12228763521.65255362]);

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... or

Label1.Caption := Format('%f', [12228763521.65255362]);

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... with default formatting.

Thanks Sinisa, I'll try that.

Looking at the Fastcode page, I noticed there were a few other routines that would be useful for me. I'm a little confused about the usage though. It seems for each fucntion, there are many different ways to call it:

function  XXXFastcodeP4N;
function  XXXFastcodeP4P;
function  XXXFastcodePMD;
function  XXXFastcodePMB;
function  XXXFastcodeAthlonXP;
function  XXXFastcodeAMD64;

I don't really want a "hardware-specific" version...Is any one of these okay, or do you know if there is just a regular "generic" way to call the function?

Thanks!
    Shawn

Using assembler variant of function for Intel processors is a good way too.

Thanks Sinisa. How do I know which one is the assembler variant function for intel processors?

Thanks
   Shawn

look at the complete picture ... for improvements
does the input have to be a float ?

this may be an odd question ... but what if you got an integer for the integer part
and an integer for the fractional part

inttostr is probably somewhat faster than floattostr

Hi Geert, well, that won't help for the odd times when the float number happens to be in Scientific Notation.

Thanks
   Shawn

Yes, we can just abandon it... sorry for that. A pretty nit-picky question from me to begin with actually...

Regards
   Shawn