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Fixed in Unity 2018.1

Votes

0

Found in

2017.2.0f3

Issue ID

969832

Regression

No

HashSet.TrimExcess causes an increase in memory

Scripting

-

-

Priority: 4Not yet prioritized for a release

-

Severity: 3Secondary functionality broken

Steps to reproduce:
1. Open attached project
2. Open "Test" Scene
3. Enter Play mode
4. Select "TrimExcess-3.5" in the hierarchy
5. Toggle Disable/Enable checkmark for TestHashSetTrimExcessBug Script component

Expected result: the function trims the HashSet to the minimum size required to contain it.
Actual result: the HashSet increases in size each time TrimExcess is called on it.

Reproduced with: 5.6.1f1, 5.6.1f1, 2017.3.1f1, 2017.3.1f1, 2018.2.0a1

Note: the issue does not appear when using .NET 4.6. It can be tested by enabling "TrimExcess-4.6" game object in the hierarchy and repeating step #5 with it.

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