_Exit

#include <stdlib.h>void _Exit(int exit_code);

_Exit( ) was added by C99.

The _Exit( ) function is similar to exit( ) except for the following:

• No calls to termination functions registered by atexit( ) are made.

• No calls to signal handlers registered by signal( ) are made.

• Open files are not necessarily flushed or closed.

Related functions are atexit( ), abort( ), and exit( ).