March 2013
Intermediate to advanced
224 pages
5h 17m
German
Content preview from C# 5.0 kurz & gut
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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.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
Unsicherer Code und Zeiger
C#
unterstützt die direkte Veränderung von Speicherinhalten durch
Zeiger, die in als unsicher gekennzeichneten Codeblöcken genutzt werden und mit der
Compileroption /unsafe kompiliert wurden. Zeigertypen
werden vor allem aus Gründen der Interoperabilität mit C-APIs genutzt, sie
können aber auch für den Zugriff auf Speicher außerhalb des verwalteten Heap
oder für performancekritische Hotspots verwendet werden.
Zeigergrundlagen
Zu jedem Werttyp bzw. Zeigertyp V gibt es einen korrespondierenden Zeigertyp V*. Eine Zeigerinstanz hält die Adresse einer Variablen. Zeigertypen können (unsicher) auf jeden anderen Zeigertyp gecastet werden. Die wichtigsten Zeigeroperatoren sind folgende:
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Operator |
Bedeutung |
|---|---|
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Der Adressoperator ... |
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.