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heavenlyblue
on Sept 12, 2019
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Immer is a library of persistent and immutable dat...
Technically copy-on-write is an implementation detail.
It may or may not be implemented this way.
slavik81
on Sept 12, 2019
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I mean that CoW classes like Qt's QStringList do the same data sharing without being immutable.
slavik81
on Sept 13, 2019
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parent
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Admittedly, it's pretty easy to accidentally make unnecessary non-const accesses in modern C++. An immutable API would certainly avoid a lot of qAsConst casts.
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It may or may not be implemented this way.