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FreeBSD man pages : exit (3)
EXIT(3) 	       FreeBSD Library Functions Manual 	       EXIT(3)

NAME

exit - perform normal program termination

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

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

DESCRIPTION

Exit() terminates a process. Before termination it performs the following functions in the order listed: 1. Call the functions registered with the atexit(3) function, in the reverse order of their registration. 2. Flush all open output streams. 3. Close all open streams. 4. Unlink all files created with the tmpfile(3) function. Passing arbitrary values back to the environment as status is considered bad style; you should use the values EXIT_SUCCESS and EXIT_FAILURE. If portability is not a concern, you may use the values described in sysexits(3).

RETURN VALUES

The exit() function never returns.

SEE ALSO

_exit(2), atexit(3), intro(3), sysexits(3), tmpfile(3)

STANDARDS

The exit() function conforms to ISO/IEC 9899:1990 (``ISO C89''). FreeBSD 4.8 June 4, 1993 FreeBSD 4.8