February 2020
Beginner to intermediate
616 pages
15h 16m
English
Content preview from Practical C Programming
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Registering a function that is called when a program exits
Our first recipe will be to register a function that executes automatically when a program terminates normally. For this recipe, we will be using the atexit() function.
The atexit function is set to point to a function; this function is automatically called without arguments when the program terminates. If more than one atexit function is defined in a program, then these functions will be called in the Last In, First Out (LIFO) order, that is, the function pointed to last by the atexit function will be executed first, followed by the second to last one, and so on.
The atexit function accepts a single mandatory parameter: the pointer to the function to be called on program termination. ...
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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.