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What to use in place of the obsoleted qsort?

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qsort
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  • mmikeinsantarosaM Offline
    mmikeinsantarosaM Offline
    mmikeinsantarosa
    wrote on last edited by
    #1

    I was looking for a way to sort a QVector and came across this forum thread that uses qsort. I was able to leverage this in my own code and it works just fine but... My qt.512 documentation says that qsort is obsoleted.

    What should I be using instead of qsort, now?

    qSort(foo.begin(), foo.end(), [](const marker& a, const marker& b) { return a.intensity < b.intensity; });
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    • mmikeinsantarosaM Offline
      mmikeinsantarosaM Offline
      mmikeinsantarosa
      wrote on last edited by
      #5

      The Qt is pretty darn good.
      thanks again.

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      • mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #2

        Hi
        The docs suggest using std::sort instead.

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        • mmikeinsantarosaM Offline
          mmikeinsantarosaM Offline
          mmikeinsantarosa
          wrote on last edited by
          #3

          OK, I just figured that since the original method used qSort and Qt usually provides a Qwhatever object/algorithm, there would be a newer qSuperSort or something like that. Reading further, I see there's a table of Q(algorithm)s that have been obsoleted and it includes their STL replacements.
          thanks

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          • Christian EhrlicherC Offline
            Christian EhrlicherC Offline
            Christian Ehrlicher
            Lifetime Qt Champion
            wrote on last edited by
            #4

            In the deprecation warning you even get a hint about what's the replacement:
            https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/tools/qalgorithms.h?h=dev#n174

            "Use std::sort"

            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
            Visit the Qt Academy at https://academy.qt.io/catalog

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            • mmikeinsantarosaM Offline
              mmikeinsantarosaM Offline
              mmikeinsantarosa
              wrote on last edited by
              #5

              The Qt is pretty darn good.
              thanks again.

              1 Reply Last reply
              1

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