- void NNUE::export_net() {
- if constexpr (gHasEmbeddedNet) {
- ofstream stream(EvalFileDefaultName, std::ios_base::binary);
- stream.write(reinterpret_cast<const char*>(gEmbeddedNNUEData), gEmbeddedNNUESize);
- } else {
- sync_cout << "No embedded network file." << sync_endl;
+ /// NNUE::export_net() exports the currently loaded network to a file
+ void NNUE::export_net(const std::optional<std::string>& filename) {
+ std::string actualFilename;
+
+ if (filename.has_value())
+ actualFilename = filename.value();
+ else
+ {
+ if (eval_file_loaded != EvalFileDefaultName)
+ {
+ sync_cout << "Failed to export a net. A non-embedded net can only be saved if the filename is specified." << sync_endl;
+ return;
+ }
+ actualFilename = EvalFileDefaultName;