d指针中的“d”代表什么？

Question

Qt makes heavy use of the PIMPL idiom in their development process: https://wiki.qt.io/D-Pointer

As I've read here : "The name 'd-pointer' stems from Trolltech's Arnt Gulbrandsen, who first introduced the technique into Qt, making it one of the first C++ GUI libraries to maintain binary compatibility even between bigger release." . But nobody says what "D" stands for.

So what does the "D" stand for in D-Pointer?

Answer 1

From this pageData Sharing with Class (an old docs from QT), it says:

Before we can share an object's private data, we must separate its interface from the private data using an idiom called "d-pointer" (data pointer)

So, d-pointer means data-pointer