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 16
High-Level-Dateizugriff
C stellt für den standardisierten Zugriff auf Dateien zahlreiche Funktionen zur Verfügung. Sie sind unabhängig von systemspezifischen Details und ermöglichen so das Schreiben portabler Programme.
■ Dateien und StreamsEine Datei besteht aus einer Folge von Bytes mit den Positionen 0, 1, 2 usw. Die aktuelle Position ist die Position, die als Nächstes gelesen oder geschrieben wird. Geräte wie Tastaturen oder Drucker werden wie gewöhnliche Dateien behandelt. Beim Öffnen wird die Datei mit einem neuen Stream verbunden, der für die Übertragung der Daten zuständig ist. Dabei wird eine Struktur vom Typ FILE initialisiert, die alle Informationen zur Kontrolle des Streams enthält, beispielsweise einen Zeiger auf den verwendeten ...
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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.