[Interest] Why does QVector2d not have copy/assignment?

[Schimkowitsch Robert]

I was investigating why one of my simple structs was not copyable.

Turns out that QVector2d has no copy constructor / copy assignment operator (Qt 6.7.2).
This is interesting, since it is
a) possible to construct a QVector2d from a QVector3d
b) possible to construct a QVector3d from a QVector2d
and therefore by composition possible (with some overhead) to copy a QVector2d just using constructors (i.e. without needing to know its members).

Is the omission of copy/assignment for the QVectorNd classes intentional?

Kind regards

Robert
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