It looks like I'm going to have to stringify every value I get from a Tk::Entry box.

OpenSUSE Leap 42.1 regressed perl to 5.18.2 from 5.20.1 in 13.2. It didn't work either. I'm currently upgrading Manjaro which has an up to date perl 5.24.0. I'll report on that once the update is done.

Looks like I'm going to have to submit a bug on Tk. Strange that no one has noticed this already.

Thanks for all your help

In reply to Re^2: Perl is ignoring fractional part sometimes by jinnicky
in thread Perl is ignoring fractional part sometimes by jinnicky

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