Error handling is important for robust programs from "summary" of C Programming Language by Brian W. Kernighan,Dennis Ritchie
Error handling is important for robust programs. When you write a program, you cannot assume that everything will always go smoothly. Errors can occur for a variety of reasons, such as incorrect input from the user, hardware failures, or unexpected events. If your program does not anticipate and handle these errors properly, it may crash or produce incorrect results. To ensure that your program is robust, you need to implement error handling mechanisms. This involves checking for errors at critical points in your code and taking appropriate action when an error occurs. For example, if a function fails to open a file, you should not proceed with the rest of the program as if the file had been successfully opened. One common way to handle errors in C programs is to use return values to indicate the success or failure of a function. For example, a fu...
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