On: Inheritance in C using structure composition

[icedchai]

The Amiga OS used this pattern everywhere. I first learned C on an Amiga in the late 80’s.

[ChrisMarshallNY → icedchai]

I believe that. I know that I learned it somewhere, but the origin is lost in the mists of antiquity.

I did see it somewhat formalized in the late 1990s, though, with Apple's QuickDraw GX.