I like the way how google does it with StatusOr and some status macros https://github.com/protocolbuffers/protobuf/blob/master/src/google/protobuf/stubs/status

I like the way how google does it with StatusOr and some status macros https://github.com/protocolbuffers/protobuf/blob/master/src/google/protobuf/stubs/statusor.h https://github.com/protocolbuffers/protobuf/blob/master/src/... https://github.com/protocolbuffers/protobuf/blob/master/src/google/protobuf/stubs/status_macros.h https://github.com/protocolbuffers/protobuf/blob/master/src/...