Re: [TCLCORE] The end for Tcl_PrintDouble in Tk?

[<dg...@ni...>]

Quoting Jeff Hobbs <je...@ac...>:
>      objPtr = Tcl_ObjPrintf("%s %f %f", entryPtr->scrollCmd, first, last);
> ...
> ... where "scrollCmd 0.0 1.0" was expected, it now receives
> "scrollCmd 0.000000 1.000000".

I think %f is the wrong tool for the job.  In your example,
the differences are mere formatting matters, but try again
with the values 0.0000001 and 0.0000004 .  The precision
of %f formatting -- whether you take the default of 6, or
whether you specify something else -- is the number of digits
printed after the decimal point, and takes no account of
significant digits.  I think you will see the first and
last values collapse into one value 0.000000 and I'd expect
scroll commands to be unhappy with that.

DGP