[fpc-devel] FormatFloat

[Jonas Maebe]

On 30 Dec 2009, at 17:27, darekm at emadar.com wrote:

> this program:
> var
>  d1,d2 : double;
> begin
>  d1:=105;
>  d2:=1.05e2;
>  writeln(d1-d2);
> end;

That's only part of a program, it does not compile. You may have typed it in your mail and accidentally put a ";" at the end instead of a ".", but that still means that the program you tested was probably different from what you wrote above.

> result: 6.9388939907E-18
> 
> is this bug?

With which FPC version on which platform and with which test program do you get this result? Did you use any special options to compile the RTL or compiler? When I fix the above code to end with a "." instead of with a ";", I get " 0.00000000000000E+000" with FPC 2.2.4, 2.4.0 and 2.5.1 on different platforms (Mac OS X/ppc, Mac OS X/i386, Linux/i386).


Jonas