exit() vs _Exit() in C and C++
In C, exit() terminates the calling process without executing the rest code which is after the exit() function.
Now the question is that if we have exit() function then why C11 standard introduced _Exit()? Actually exit() function performs some cleaning before termination of the program like connection termination, buffer flushes etc. The _Exit() function in C/C++ gives normal termination of a program without performing any cleanup tasks. For example it does not execute functions registered with atexit.
// Here the exit_code represent the exit status // of the program which can be 0 or non-zero. // The _Exit() function returns nothing. void _Exit(int exit_code);
Showing difference through programs:
If we replace exit with _Exit(), then nothing is printed.
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