November 2002
Intermediate to advanced
432 pages
9h 20m
English
Content preview from Essential .NET, Volume 1: The Common Language RuntimeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Interfaces, Virtual Methods, and Abstract Methods
The CLR deals with objects and interface types differently than its predecessors (C++ and COM). In C++ and COM, a given concrete type has one method table per base type or supported interface. In contrast, a given concrete type in the CLR has exactly one method table. By inference, a CLR-based object has exactly one type handle. This is in stark contrast to C++ and COM, where an object would routinely have one vptr per base type or interface. For this reason, the CLR's castclass does not result in a second pointer value in the same way as C++'s dynamic_cast or COM's QueryInterface.
Each CLR type has a single method table independent of its type hierarchy. The initial slots in the method table ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.