abort_handler_s
_Noreturn void abort_handler_s(const char * __restrict, void * __restrict,
assert(set_constraint_handler_s(abort_handler_s) == NULL);
set_constraint_handler_s(abort_handler_s);
assert(set_constraint_handler_s(ignore_handler_s) == abort_handler_s);
assert(set_constraint_handler_s(abort_handler_s) == ignore_handler_s);