Greetings, While testing QGIS compiled against Qt5 5.6.1 (the version that will be offered in Ubuntu's next release in a month or so), I ran into a rounding issue, whereas the round() expression engine function simply fails to round values to the stated number of decimals.
As seen in this screenshot[1], using this expression "round( 0.972743..., 2 )" to round the double value to two decimals returns 0.96999999999997. Nyall says the issue has been fixed in Qt5 5.7. For Qt5 < 5.7, is there a contingency plan for this problem? Could we get distributions to include a fix in their 5.6.x packages (if that’s possible)? Math [1] http://i.imgur.com/7v2Z24Z.png
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