April 2015
Intermediate to advanced
430 pages
8h 47m
German
Content preview from C++: Eine kompakte EinführungBecome 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.
5 Schleifen
Schleifen zählen zu den Wiederholungsanweisungen (iteration statements). Sie dienen dazu, Programmcode zu wiederholen.
Wir haben in unseren Programmen den Anwender schon häufiger nach Informationen gefragt, diese aber nie auf ihre Sinnhaftigkeit hin geprüft. Nehmen wir nur das Programm, das den Anwender fragte, wie viele Seiten er zu lesen plant. Er hätte auch negative Werte oder Zahlen im Tausenderbereich eingeben können.
Dabei wäre es doch praktisch, wenn offensichtlich falsche Angaben nicht akzeptiert und der Anwender erneut gefragt würde. So etwas lässt sich bequem mit einer Schleife lösen.
5.1 while
Betrachten wir zunächst die while-Schleife. Syntaktisch sieht sie der if-Anweisung sehr ähnlich:
while(ausdruck) anweisung;
Dabei ...
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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.