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  1. Qt
  2. QTBUG-107698

Improve output buffer estimation in qCompress()

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Details

    • Task
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • None
    • Core: Containers and Algorithms
    • None
    • 5
    • Foundation PM Prioritized

    Description

      Since fixing QTBUG-104972 and QTBUG-106542, we no longer allocate a buffer larger than the input, in anticipation of incompressible input, at least not for larger inputs, but reviewers requested that the output buffer growth do less reallocations than it does now.

      Agree on a output buffer sizing strategy, then implement it.

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          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-106542 qCompress()/qUncompress() cannot handle more than 4GiB of data on Win64

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Task - A task that needs to be done. QTBUG-104972 qUncompress(qCompress()) round-trip fails for data > 2GiB

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Activity

            People

              mmutz Marc Mutz
              mmutz Marc Mutz
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              Dates

                Created:
                Updated: