February 2020
Beginner to intermediate
616 pages
15h 16m
English
Content preview from Practical C Programming
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Using the atexit function, register a function called freeup, ensuring that the freeup function will be invoked if the program terminates normally. The value returned by the atexit function is checked to see that it is zero only. If the value returned by the atexit function is a nonzero value, then that means the function is not registered successfully and the program will terminate after displaying an error message.
If the function is registered successfully, 20 bytes are dynamically allocated and the allocated memory block is assigned to a character pointer, str. If the str pointer is NULL, then this means an error has occurred in the allocation of the memory block. If it is confirmed that the str pointer is not NULL and ...
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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.