06-16-2007
hi enuenu,
actualy you should use
#include <stdlib.h>
exit(EXIT_SUCCESS);
exit(EXIT_FAILURE);
just my 2 cents
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EXIT(3) BSD 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. The status values EXIT_SUCCESS and EXIT_FAILURE can be used to indicate successful and unsuccessful termina-
tion, respectively.
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.
Following this, exit() calls _exit(2).
RESTRICTIONS
Standard C guarantees only that the values zero, EXIT_SUCCESS, and EXIT_FAILURE produce meaningful results. POSIX extends this to guarantee
that the least significant 8 bits of status are preserved and returned to the parent via wait(2). Values outside the supported range 0-255
are bitwise-truncated; therefore, negative values should not be used.
RETURN VALUES
The exit() function never returns.
SEE ALSO
_exit(2), atexit(3), intro(3), tmpfile(3)
STANDARDS
The exit() function conforms to ANSI X3.159-1989 (``ANSI C89'').
BSD
January 2, 2012 BSD