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Fixed in Unity 2018.2

Votes

0

Found in

2017.2.0f3

Issue ID

993302

Regression

No

System.Math.Round produces wrong result with .NET 3.5

Mono

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Priority: 5Not yet prioritized for a release

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Severity: 4Minor or cosmetic issue

To reproduce:

1. Open the project, attached by the tester ("SystemMathBug.zip")
2. Open the "scene" scene
3. Enter Play mode
4. Observe the console

Expected: the result of System.Math.Round(38.5d, 0, MidpointRounding.AwayFromZero) should be 39 as it is in the pure C#
Actual: System.Math.Round in Unity produces different results than in the pure C# application

Reproduced in 5.6.5f1, 2017.1.2p2, 2017.2.0f3, 2017.2.1p3, 2017.3.0p4, 2018.1.0b5

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