[Development] Deleter that calls deleteLater() for use with std::unique_ptr<> and other smart pointers

Konstantin Tokarev annulen at yandex.ru
Wed Apr 19 19:48:38 CEST 2017

19.04.2017, 20:43, "Thiago Macieira" <thiago.macieira at intel.com>:
> On quarta-feira, 19 de abril de 2017 06:44:24 PDT Konstantin Tokarev wrote:
>>  Hello,
>>  I think it will be a good idea to provide implementation of functor calling
>>  deleteLater() instead of delete which can be used with std::unique_ptr,
>>  std::shared_ptr and other smart pointers with compatible interface.
>>  We already have QScopedPointerObjectDeleteLater, however it implements
>>  cleanup(T*) instead of operator()(T*).
>>  Any suggestions how to name this new class and where to place it?
> QSharedPointer already supports a PMF as a deleter.
>         auto ptr = QSharedPointer<QObject *>(new QObject, &QObject::deleteLater);
> So I think this actually belongs in the std-proposals mailing list, not in Qt.
> Until C++20 gets it, you can use a lambda.

It's not possible to have members with auto-deduced types in non-template class,
so I actually cannot.

> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
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