GCC buld environment and gRPC v1.20.0 with protobuf 3.7.0 installed.
$ make
$ ./calc_server
$ ./calc_client 1 2 +
Result: 3
$ ./calc_client 1 2 /
Result: 0.5
$ ./calc_client 1 2 \*
Result: 2
test
GCC buld environment and gRPC v1.20.0 with protobuf 3.7.0 installed.
$ make
$ ./calc_server
$ ./calc_client 1 2 +
Result: 3
$ ./calc_client 1 2 /
Result: 0.5
$ ./calc_client 1 2 \*
Result: 2
test