Hi Robert, thanks for the quick and complete answer! by looking at the numbers I was wondering about just disabling the testsuite on i686 (I don't see any pratical difference between -9.5518e-17 and 0 in the real world :) )
I uploaded a fix in Ubuntu with the testsuite disabled on that arch, thanks for confirming and the quick "fix" cheers, G. Il Giovedì 28 Aprile 2016 1:10, Robert S. Maier <[email protected]> ha scritto: On 04/26/2016 07:27 AM, Gianfranco <[email protected]> wrote: > Hi, I'm attaching the spline.test directory and the build log on Ubuntu yakkety i386 > (the default should be i686 now) thanks, Gianfranco Gianfranco, thanks for the bug report on `spline' in plotutils. It's not at all serious, fortunately. What's happening is this: the `make test' procedure for plotutils executes the `spline.test' script in the test directory, which runs the command echo 0 1 0.5 0.75 -0.25 0 | ../spline/spline -a -T 1 -n 120 --precision 5 -p >spline.out The output file, spline.out, is then compared against the expected output, which is in the file spline.xout. They don't exactly match on your system, which is why the test failed. If you do a `diff spline.xout spline.out' to compare the two files, you'll see this: 1c1 < 0 0 --- > 0 I 121c121 < 5 0 --- > 5 -9.5518e-17 The difference between -9.5518e-17 and zero (which are y-values generated by `spline', at the endpoints of an interpolatory range) is not a major one! However, this ought to be fixed in the next release. (This numerical bug appears on some systems but not on others, for unknown reasons; so the easiest way to deal with it would be to modify the test script `spline.test', to ignore the first and last lines when comparing spline.out with spline.xout.) Best, Rob _______________________________________________ Bug-plotutils mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-plotutils
