May 2012
Intermediate to advanced
679 pages
16h 56m
English
Content preview from Object Oriented Programming with C++, Second EditionBecome 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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11.9 OUR OWN MANIPULATORS
We can write our own manipulators. As they are written for specific situations, they are also called as custom manipulators.
Manipulators are designed as functions. It must return a reference to ostream. As we cannot return a local variable as reference, we have to pass reference to ostream as a parameter. It helps it to take part in a chained output.
Consider the problem of printing currency. We need the precision of two. In addition, we want trailing zeros, if any. To define a manipulator, a particular format is needed. It is shown below.
Problem: Write a program to define a manipulator “standard”. It should help in setting suitable flags for printing floating point number as amount.
Solution: Amounts are written only ...
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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.