Bug report #20861
Function "round" in expressions assumes a strange behavior on negative numbers when the parameter "places" is assigned.
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Loïc BARTOLETTI | ||
| Category: | Expressions | ||
| Affected QGIS version: | 3.5(master) | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 28680 |
Description
Function "round" in expressions assumes a strange behavior on negative numbers when the parameter "places" is assigned.
Tested on attributes of type "Decimal number (real)".
It does not happen when applied to positive numbers or when the "places" parameter is not specified.
Tested on QGIS 3.4.2, Windows 10, with all plugins disabled or not.
Associated revisions
[BUGFIX] fix qgsRound for negative numbers. Fixes #20861
[BUGFIX] fix qgsRound for negative numbers. Fixes #20861
(cherry picked from commit cfdc8c26c29baaf4a62c9a94df9208dff3f6beda)
History
#1
Updated by Loïc BARTOLETTI about 5 years ago
- Operating System deleted (
Windows 10) - Affected QGIS version changed from 3.4.2 to 3.5(master)
- Assignee set to Loïc BARTOLETTI
- Status changed from Open to Feedback
Can you describe the problem more precisely by including the treatment involved and the expected outcome.
For my part, I observed a problem with rounding, e. g:
round(-1234.567, 2) => -1234.56 instead of -1234.57 (in comparison with postgis or python)
Is it the same problem?
#2
Updated by Loïc BARTOLETTI about 5 years ago
- % Done changed from 0 to 100
- Status changed from Feedback to Closed
Applied in changeset qgis|cfdc8c26c29baaf4a62c9a94df9208dff3f6beda.
#3
Updated by Gabriel De Luca about 5 years ago
Loïc BARTOLETTI wrote:
Is it the same problem?
Yes, also round( -100.00, 1) returns -99.9 instead of -100.0
Thanks for fix it.