Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-105720

[Documentation] QHash is documented to not change order of items in the hash on erase()

    XMLWordPrintable

    Details

      Description

      But it might. When an item is freed, if there was previously another element inserted that would have otherwise ended up in that slot it will have moved to the next 'free' slot. So, when an element is erase()d we move the second element into its slot. This item may happen to be an item that has been visited earlier!

      Example found here:
      https://doc.qt.io/qt-6/qhash.html#erase

        Attachments

          Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-101754 QHash::erase edge-case when erasing elements while traversing

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            Activity

              People

              Assignee:
              cnn Qt Core & Network
              Reporter:
              manordheim Mårten Nordheim
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

                Dates

                Created:
                Updated:

                  Gerrit Reviews

                  There are no open Gerrit changes