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hi, when we dont include the headers in C, and call printf() or exit(), we get the warning of an implicit declaration of those functions.
is there a way to not get these warnings, and not include the headers at the same time?
But it isn't a good answer. If you ever read the /usr/include/nnn.h files you'll see why. There are all kinds of things that are declared different ways in different environments. eg., as macros vs functions or as float vs double.
All of this could become a problem for you running your code.