On Saturday, 18 July 2026 14:48:34 Pacific Daylight Time Giuseppe D'Angelo via Development wrote: > For QMap I introduced QESDPV2 precisely because I wanted deep constness. > Neither QESDP nor the standard library smart pointers propagate, and > those are landmines. We should likely also introduce a private > propagate_const if someone really needs a raw pointer for whatever reason.
It's interesting that the d_func() from Q_DECLARE_PRIVATE does propagate constness, because the d_func() const returns a const Private *. Though it's still possible to accidentally violate it in a new indirection, if the Private contains another pointer. The pointer is const, but the pointee isn't. -- Thiago Macieira - thiago.macieira (AT) intel.com Principal Engineer - Intel DCG - Platform & Sys. Eng.
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