Ends program execution without calling atexit( ) functions or signal handlers

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

The _Exit( ) function terminates the program normally, but without calling any cleanup functions that you have installed using atexit( ), or signal handlers you have installed using signal( ). Exit( ) returns a status value to the operating system in the same way as the exit( ) function does.

Whether _Exit( ) flushes the program's file buffers or removes its temporary files may vary from one implementation to another.

Example

int main (int argc, char *argv[ ])
{
  if (argc < 3)
  {
    fprintf(stderr, "Missing required arguments.\n");
    _Exit(-1);
  }
  /* ... */
}

See Also

abort( ), exit( ), atexit( ), raise( )