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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12.5 POINTER ARITHMETIC
Pointer arithmetic allows us to use pointers in very interesting manner. Let a pointer point to one of the elements of an array. Now you can treat pointer like an integer and add a small constant say “n”. Please note that the result of this is a pointer pointing to nth location from the current location (where pointer is pointing). If you increment the pointer by one, it will start pointing to the next element. Pointer can also be decremented by a small constant. Its effect will be similar to addition, except the direction will be opposite. It means after p–– p will point to previous location. (p–3) will mean 3rd previous location.
Note: The pointer on its own does not know the array bounds. It is solely the responsibility ...
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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.