_Exit

Syntax

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

Description

This function exits the program, returning exit_code to the calling process. No additional processing (such as closing file descriptors or calls to the static destructor functions) is done, and any atexit functions are not called; only the hardware interrupt handlers are unhooked, to prevent system crashes.

Return Value

This function does not return.

Portability

ANSI/ISO C	C99 (see note 1); not C89
POSIX	1003.1-2001; not 1003.2-1992

Notes:

1. Depending on the implementation, _Exit may do the additional processing described above.

Example

if (argc < 4) { print_usage(); _Exit(1); }