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Re: Floating point roundoff in cpan test scripts
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On Fri, Jun 20, 2003 at 11:38:03AM -0400, Walt Mankowski wrote:
> I just put up my first module on CPAN the other day[1], and this
> morning I got an email from cpan-testers saying that it some of the
> tests failed on Solaris.
>
> I'm using Test::More to do the tests. The line that fails is
>
> is_deeply( [decimal2dms( 0.25416666666666667 )], [ 0, 15, 15]);
>
> The error it's returning is
>
> # Structures begin differing at:
> # $got->[2] = '15.0000000000001'
> # $expected->[2] = '15'
>
> Is there any easy way I can tell it that if it's within a given delta
> of the value I'm looking for, it's close enough?
Um, it looks like you're trying to convert a decimal to degrees, minutes
and seconds. By definition, if you're going d/m/s, the first two values
should be integers. There's no point in having a fractional minute and
also calculating seconds...
Pass the first two results through int() and see if that helps. :-)
Z.
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