Maxim Cournoyer writes:
> Hi,
>
> I've tried fixing hyperledger-iroha without success. Updating it to
> latest would require prometheus-cpp, not yet packaged. Anything I've
> tried always end up with C++ compilation errors, such as this one
> (protobuf 3.14):
>
> c++14 -Wall -fdiagnostics-color=always -O2 -g -DNDEBUG -fPIC -MD -MT
> shared_model/backend/protobuf/CMakeFiles/shared_model_proto_backend.dir/queries/impl/proto_get_signatories.o
> -MF
> CMakeFiles/shared_model_proto_backend.dir/queries/impl/proto_get_signatories.o.d
> -o
> CMakeFiles/shared_model_proto_backend.dir/queries/impl/proto_get_signatories.o
> -c
> /tmp/guix-build-hyperledger-iroha-1.1.1.drv-0/source/shared_model/backend/protobuf/queries/impl/proto_get_signatories.cpp
> /tmp/guix-build-hyperledger-iroha-1.1.1.drv-0/source/irohad/consensus/yac/impl/peer_orderer_impl.cpp:
> In member function ‘virtual
> boost::optional
> iroha::consensus::yac::PeerOrdererImpl::getOrdering(const
> iroha::consensus::yac::YacHash&,
> std::vector >)’:
> /tmp/guix-build-hyperledger-iroha-1.1.1.drv-0/source/irohad/consensus/yac/impl/peer_orderer_impl.cpp:28:14:
> error: ‘shuffle’ is not a member of ‘std’
>28 | std::shuffle(peers.begin(), peers.end(), gen);
> | ^~~
> make[2]: *** [irohad/consensus/yac/CMakeFiles/yac.dir/build.make:121:
> irohad/consensus/yac/CMakeFiles/yac.dir/impl/peer_orderer_impl.o] Error 1
> make[2]: *** Waiting for unfinished jobs
At first I thought it might be using a C++ standard that is too new or
too old, but std::shuffle seems to have been standardized in C++11 and
has not been removed since. Hmm.
https://en.cppreference.com/w/cpp/algorithm/random_shuffle
Still, I'd try compiling again with different compiler flags, might have
some luck. Or looking into how std::shuffle is defined in the standard library.
