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  1. Qt
  2. QTBUG-108756

QCollatorSortKey gives wrong compare result

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Details

    • Bug
    • Resolution: Unresolved
    • 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

    Description

      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

       

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        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-88704 QCollatorSortKey is not working properly without ICU support

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-67490 QCollatorSortKey doesn't work on macOS

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

            People

              cnn Qt Core & Network
              zloty Paweł Srebrny
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              2 Vote for this issue
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              Dates

                Created:
                Updated:

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