GRIM: Fix unknown key error when loading savegame #2790
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_map.erase(id); | ||
T *t = nullptr; | ||
if (_map.tryGetVal(id, t)) | ||
_map.erase(id); | ||
if (!t) { |
henke37
Feb 21, 2021
Contributor
I would've probably reused the existing if statement. It's clear from context that it's the same condition.
I would've probably reused the existing if statement. It's clear from context that it's the same condition.
criezy
Feb 21, 2021
Author
Member
I didn't know if I could assume that _map
does not contain null pointers. But if that is a safe assumption we could indeed use an else
statement here.
I didn't know if I could assume that _map
does not contain null pointers. But if that is a safe assumption we could indeed use an else
statement here.
henke37
Feb 21, 2021
Contributor
It calls a member function only a few lines bellow, no null pointers could've been stored legitimately.
It calls a member function only a few lines bellow, no null pointers could've been stored legitimately.
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A user reported a crash with
Unknown key!
error when trying to load a save game in MI4 today on IRC/Discord.@henke37 suggested that the likely culprit was the code changed in this pull request.
I don't have the game, and the demo doesn't let me save games. So I am unable to test this. This is why I am proposing this as a pull request so that developers who know the engine or can at least test it can validate the change.