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/*

 * Copyright (c) 1990 Regents of the University of California.

 * All rights reserved.

 *

 * %sccs.include.redist.c%

 */

/*

FUNCTION

<>---end program execution

INDEX

	exit

ANSI_SYNOPSIS

	#include 

	void exit(int <[code]>);

TRAD_SYNOPSIS

	#include 

	void exit(<[code]>)

	int <[code]>;

DESCRIPTION

Use <> 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, <> and

<>, are defined in `<>' to indicate success or

failure in a portable fashion.

<> does two kinds of cleanup before ending execution of your

program.  First, it calls all application-defined cleanup functions

you have enrolled with <>.  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 <> are

deleted.

RETURNS

<> does not return to its caller.

PORTABILITY

ANSI C requires <>, and specifies that <> and

<> must be defined.

Supporting OS subroutines required: <<_exit>>.

*/

#include 

#include 	/* for _exit() declaration */

#include 

#include "atexit.h"

/*

 * Exit, flushing stdio buffers if necessary.

 */

void

_DEFUN (exit, (code),

	int code)

{

#ifdef _LITE_EXIT

  /* Refer to comments in __atexit.c for more details of lite exit.  */

  void __call_exitprocs _PARAMS ((int, _PTR)) __attribute__((weak));

  if (__call_exitprocs)

#endif

    __call_exitprocs (code, NULL);

  if (_GLOBAL_REENT->__cleanup)

    (*_GLOBAL_REENT->__cleanup) (_GLOBAL_REENT);

  _exit (code);

}