PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

EXIT(3P)                  POSIX Programmer's Manual                 EXIT(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       exit — terminate a process

SYNOPSIS         top

       #include <stdlib.h>

       void exit(int status);

DESCRIPTION         top

       The functionality described on this reference page is aligned with
       the ISO C standard. Any conflict between the requirements described
       here and the ISO C standard is unintentional. This volume of
       POSIX.1‐2008 defers to the ISO C standard.

       The value of status may be 0, EXIT_SUCCESS, EXIT_FAILURE, or any
       other value, though only the least significant 8 bits (that is,
       status & 0377) shall be available to a waiting parent process.

       The exit() function shall first call all functions registered by
       atexit(), in the reverse order of their registration, except that a
       function is called after any previously registered functions that had
       already been called at the time it was registered. Each function is
       called as many times as it was registered. If, during the call to any
       such function, a call to the longjmp() function is made that would
       terminate the call to the registered function, the behavior is
       undefined.

       If a function registered by a call to atexit() fails to return, the
       remaining registered functions shall not be called and the rest of
       the exit() processing shall not be completed. If exit() is called
       more than once, the behavior is undefined.

       The exit() function shall then flush all open streams with unwritten
       buffered data and close all open streams. Finally, the process shall
       be terminated with the same consequences as described in Consequences
       of Process Termination.

RETURN VALUE         top

       The exit() function does not return.

ERRORS         top

       No errors are defined.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       See _Exit().

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       _Exit(3p), atexit(3p), exec(1p), longjmp(3p), tmpfile(3p)

       The Base Definitions volume of POSIX.1‐2008, stdlib.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) In the event of any discrepancy between this version and
       the original IEEE and The Open Group Standard, the original IEEE and
       The Open Group Standard is the referee document. The original
       Standard can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the
       source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                            EXIT(3P)