1 tst/incr.c:1: warning: missing return value
2 tst/incr.c:6: warning: expression with no effect elided
3 tst/incr.c:6: warning: expression with no effect elided
4 tst/incr.c:11: warning: missing return value
5 tst/incr.c:16: warning: expression with no effect elided
6 tst/incr.c:16: warning: expression with no effect elided
7 tst/incr.c:21: warning: missing return value
8 tst/incr.c:30: warning: missing return value
9 tst/incr.c:39: warning: missing return value