/* */ /* Special Conformance Test 21.3.0.2: Verification of _exit function */ /* */ /* The tester should verify that the program halts and that the {status} */ /* shell variable is set to 10 upon completion of the program. No messages */ /* should be printed by any of the functions registered with atexit. */ /* */ #include /******************************************************************************/ void F1 () { printf ("Return from function 1\n"); } /******************************************************************************/ void F2 () { printf ("Return from function 2\n"); } /******************************************************************************/ void F3 () { printf ("Return from function 3\n"); } /******************************************************************************/ main () { int i; i = atexit (F3); if (i != 0) goto Fail; i = atexit (F2); if (i != 0) goto Fail; i = atexit (F1); if (i != 0) goto Fail; _exit (10); Fail: printf ("Failure of atexit function in Special Conformance Test 21.3.0.2\n"); }