Randomization QList<QString> on label

[wysota]

Either:

std::shuffle(str_list.begin(), str_list.end());
str_list.takeFirst();

std::shuffle(str_list.begin(), str_list.end());
str_list.takeFirst();

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or

QString str = str_list.at(qrand() % str_list.size());

QString str = str_list.at(qrand() % str_list.size());

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depending on the effect you want to achieve (the first guarantees the same string is not chosen twice in a row, the other does not).