Warning: implicit declaration of built-in function 'exit' is not compatible solutions

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1. #include <stdio.h>  
2.   
3. int main ()  
4. {  
5.     printf("hello world!/n");  
6.     exit(0);  
7. }  

 

 

       The reason is simple, and did not include it stdlib.h, with no problem. Later, when the google search found online a lot of people have this problem, to write down the solution to this problem today.

So, the compiler warning: implicit declaration of built-in functions 'XXX' is not compatible with the problem because they did not include the appropriate header files, plus it is OK!