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  1. Qt
  2. QTBUG-108756

QCollatorSortKey gives wrong compare result

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P2: Important P2: Important
    • None
    • 5.15.10
    • Core: Locales (i18n), Core: QString and Unicode
    • None
    • Qt 5.15.10 msvc2019_64 compiler version installed
    • Windows
    • 21

      QCollator with numericMode generates QCollatorSortKey that have differ results in compare function that QCollator that generates that keys.

      The easiest example of that:

      mCollator.setNumericMode(true);
auto result = mCollator.compare("00", "10"); //-1 ok
QCollatorSortKey key1 = mCollator.sortKey("00");
QCollatorSortKey key2 = mCollator.sortKey("10");

auto result2 = mCollator.compare("9", "10"); // -1 ok
QCollatorSortKey key3 = mCollator.sortKey("9");
QCollatorSortKey key4 = mCollator.sortKey("10");

auto result3 = mCollator.compare("99", "100"); // -1 ok
QCollatorSortKey key5 = mCollator.sortKey("99");
QCollatorSortKey key6 = mCollator.sortKey("100");

bool result4 = key1 < key2; //false wrong
bool result5 = key3 < key4; //true  ok
bool result6 = key5 < key6; //false wrong

      It seems that that QCollatorSortKey generated from QCollator not works properly when setNumericMode is set to true.

       

      I attached some example of result after sorting, the range was from 0 to 35000

       

        1. example.PNG
          28 kB
          Paweł Srebrny
        2. image-2022-11-23-12-04-46-881.png
          12 kB
          Paweł Srebrny
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            cnn Qt Core & Network
            zloty Paweł Srebrny
            Vladimir Minenko Vladimir Minenko
            Alex Blasche Alex Blasche
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              Created:
              Updated:
              Resolved:

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