Copying from allocated memory to a repetable field.

[Gerardo Melesio]

I am new to the gRPC implementation in C++ and wantd to see if there is any way of achieving something.

I have a low library in C that is performing some operations with Matrices. It saves the result in a pointer that was allocated dynamically in memory. 

matrixDataA = (double *) malloc(sizeA*sizeof (double ));
//... some code fills MatrixA with data

// then manually copy the data to the protobuf

for(int i = 0; i < sizeA; i++){
                matrixDataA[i] = reply->data_c()[i];
  }

Would there be any way of copying my data in the *double pointer to the reply->data_c(), assuming data_c is a repeated double field?

[Gerardo Melesio]

Bug in the copied code, I'm copying the matrix to protobuf this way:

// then manually copy the data to the protobuf

for(int i = 0; i < sizeA; i++){

                reply->data_c()[i] = matrixDataA[i];
  }

I'm guessing the answer is now because of encoding, but if anyone has an idea I'm happy to hear it out.