Actually, I suspect the opposite. My memory is fuzzy but I think zmq::socket_t overloads operator*, making me think you started with a pointer and need ANOTHER *. You can look in /usr/include/zmq.hpp (NOT .h), or according to The Fine Manual:
To obtain a ØMQ socket for use in a zmq_pollitem_t structure, you should cast an instance of the socket_t class to (void *). because it implements operator void* but you must invoke it explicitly. — Jim Melton (sent from my iPhone) (303) 829-0447 http://blogs.melton.space/pharisee/ > On Mar 13, 2020, at 07:51, Brett Viren <[email protected]> wrote: > > Hi Simon, > > This apparently has nothing to do with majordomo protocol versions. > > It would help if you show your code but based on the small hints, I > agree with Brian. Remove the "*" in front of "sock". > > If the build failed to find cppzmq header files you'd see much different > errors. > > -Brett. > > SIMON BABY <[email protected]> writes: > >> Thanks Brian . I think I am missing some cppzmq package . I am not sure >> which version I have to use . >> >> On Friday, March 13, 2020, Brian T. Carcich <[email protected]> wrote: >> >> I don't have time to be sure, and I don't have your code, but I think the >> asterisks before [sock] and >> [eplt->get().sock] are turning (zmq::socket_t*) POINTERS to zmq::socket_t >> class objects into >> (zmq::socket_t) class objects, and the C++ compiler can cast the former into >> (void*) pointer, but >> not the latter. >> >> Best regards. >> >> On Fri, Mar 13, 2020 at 1:23 AM SIMON BABY <[email protected]> wrote: >> >> []...] >> >> src/zipcpp.cpp:125:53: error: cannot convert ‘zmq::socket_t’ to ‘void*’ in >> initialization >> >> pollitem_t pollItem = { *sock, 0, ZMQ_POLLIN, 0 }; >> >> [...] >> >> src/zipcpp.cpp:380:69: error: cannot convert ‘zmq::socket_t’ to ‘void*’ in >> initialization >> >> pollitem_t pollItem = { *epIt->get().sock, 0, ZMQ_POLLIN, 0 }; // >> no constructor for >> pollitem_t >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> https://lists.zeromq.org/mailman/listinfo/zeromq-dev > _______________________________________________ > zeromq-dev mailing list > [email protected] > https://lists.zeromq.org/mailman/listinfo/zeromq-dev
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