es1 631 opal/mca/event/libevent2022/libevent/test/regress_util.c struct example_struct es1; es1 633 opal/mca/event/libevent2022/libevent/test/regress_util.c es1.a = "World"; es1 634 opal/mca/event/libevent2022/libevent/test/regress_util.c es1.b = "Hello"; es1 635 opal/mca/event/libevent2022/libevent/test/regress_util.c es1.c = -99; es1 639 opal/mca/event/libevent2022/libevent/test/regress_util.c cp = &es1.b; es1 640 opal/mca/event/libevent2022/libevent/test/regress_util.c tt_ptr_op(EVUTIL_UPCAST(cp, struct example_struct, b), ==, &es1);