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Fix 75b6051b: removing items from the ini could leave the group in a bad state #9445

merged 1 commit into from Jul 17, 2021


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@TrueBrain TrueBrain commented Jul 17, 2021

Motivation / Problem

@LordAro had an ini-file that crashed the game upon save. Investigation showed I fucked up IniGroup::RemoveItem ;)


There are a few things going on here, but mostly last_item is a shitty name for a pointer to the ->next of the real last item. I drew some wrong conclusions because of that, resulting in a broken implementation.

Now when the last item of a group is removed, last_item points to the next of the previous value, keeping the group in a valid state.


Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

  • The bug fix is important enough to be backported? (label: 'backport requested')
  • This PR affects the save game format? (label 'savegame upgrade')
  • This PR affects the GS/AI API? (label 'needs review: Script API')
    • ai_changelog.hpp, gs_changelog.hpp need updating.
    • The compatibility wrappers (compat_*.nut) need updating.
  • This PR affects the NewGRF API? (label 'needs review: NewGRF')

@TrueBrain TrueBrain merged commit ab60111 into OpenTTD:master Jul 17, 2021
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@TrueBrain TrueBrain deleted the fix-ini-loader branch Jul 17, 2021
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2 participants