ofstream& operator<< (ofstream& out, Dataset& ds) { unsigned int size = ds.size(); // unsigned int input_size = ds.GetInputSize(); unsigned int output_size = ds.GetOutputSize(); out << input_size << " " << output_size << endl; for (unsigned int i = 0; i < size; i++) { // Sample* s = ds[i]; for (unsigned int j = 0; j < input_size; j++) { out << s->GetInput(j) << " "; } for (unsigned int j = 0; j < output_size; j++) { out << s->GetOutput(j) << " "; } out << endl; } return out; }