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  1. Qt
  2. QTBUG-92941

REG 5->6: QVector size() does not reach capacity() before reallocating

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P1: Critical P1: Critical
    • None
    • 6.0, 6.1, 6.2
    • Core: Containers and Algorithms
    • None

      This code regressed in Qt 6:

          QVector<int> v;
    v.resize(4);
    v.erase(v.begin());
    while (v.size() < v.capacity()) {
        v.push_back(0);
    }

      The while loop never terminates; the vector is reallocated too early, when size() == capacity() - 1, and keeps getting reallocated like that.

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            thiago Thiago Macieira
            peppe Giuseppe D'Angelo
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              Created:
              Updated:

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