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Editorial Team
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Asked: 2026-06-01T04:44:55+00:00

I keep getting this passing ‘const QString’ as ‘this’ argument of ‘QString& QString::operator=(const QString&)’

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I keep getting this passing 'const QString' as 'this' argument of 'QString& QString::operator=(const QString&)' discards qualifiers error and I don’t know why… I already somewhat isolated this piece to make free of external causes but still persists.

QVector< QPair<QString, QString> > some;
some.at(0).first = QString("HA");

Ignore the fact that I’m working with an empty vector, unless it’s the source of the problem. 🙁 It should only create a runtime error instead of a compile-time error, no?

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1 Answer

  1. Editorial Team

    const T & QVector::at ( int i ) const

    You cannot assign value to const reference.

    use

    some[0]

    in order to get a non-const reference

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