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/*
* Copyright (c) 1990 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/
/*
FUNCTION
<<exit>>---end program execution
INDEX
exit
SYNOPSIS
#include <stdlib.h>
void exit(int <[code]>);
DESCRIPTION
Use <<exit>> to return control from a program to the host operating
environment. Use the argument <[code]> to pass an exit status to the
operating environment: two particular values, <<EXIT_SUCCESS>> and
<<EXIT_FAILURE>>, are defined in `<<stdlib.h>>' to indicate success or
failure in a portable fashion.
<<exit>> does two kinds of cleanup before ending execution of your
program. First, it calls all application-defined cleanup functions
you have enrolled with <<atexit>>. Second, files and streams are
cleaned up: any pending output is delivered to the host system, each
open file or stream is closed, and files created by <<tmpfile>> are
deleted.
RETURNS
<<exit>> does not return to its caller.
PORTABILITY
ANSI C requires <<exit>>, and specifies that <<EXIT_SUCCESS>> and
<<EXIT_FAILURE>> must be defined.
Supporting OS subroutines required: <<_exit>>.
*/
#include <stdlib.h>
#include <unistd.h> /* for _exit() declaration */
#ifndef TINY_STDIO
#include <stdio.h>
#endif
#include "atexit.h"
/*
* Exit, flushing stdio buffers if necessary.
*/
void
exit (int code)
{
#ifdef _LITE_EXIT
/* Refer to comments in __atexit.c for more details of lite exit. */
void __call_exitprocs (int, void *) __attribute__((weak));
if (__call_exitprocs)
#endif
__call_exitprocs (code, NULL);
#ifndef TINY_STDIO
if (_REENT_CLEANUP(_GLOBAL_REENT))
(*_REENT_CLEANUP(_GLOBAL_REENT)) (_GLOBAL_REENT);
if (__stdio_exit_handler != NULL)
(*__stdio_exit_handler) ();
#endif
_exit (code);
}
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