October 2018
Intermediate to advanced
320 pages
6h 20m
German
Content preview from C - Das ÜbungsbuchBecome 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,
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.
Kapitel 13
Zeiger
Ein effektiver Umgang mit Daten erfordert es oft, mit Verweisen auf die Daten zu arbeiten. Beispielsweise ist es bei größeren Datenmengen sinnvoll, an eine Funktion nicht eine Kopie der Daten zu übergeben, sondern lediglich ihre Adresse. So hat die Funktion auch die Möglichkeit, die Daten zu verändern.
■ Zeiger definierenEin Zeiger (engl. Pointer) repräsentiert die Adresse und den Typ eines Objekts oder einer Funktion. Hat ein Objekt den Typ T, so hat ein Zeiger auf das Objekt den abgeleiteten Typ Zeiger auf T, oder kurz T-Zeiger. Beispielsweise ist der Name eines Vektors ein Zeiger auf das erste Vektorelement, also ein Zeiger auf int, wenn die Elemente den Typ int haben. Ebenso ist für eine int-Variable var der Ausdruck &var ...
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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.