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Send error message as an UCI info string 

some GUIs do not show the error message when the engine terminates in the no-net case, as it is send to cerr.
Instead send it as an info string, which the GUI will more likely display.

closes https://github.com/official-stockfish/Stockfish/pull/3031

No functional change.
pull/3035/head
Joost VandeVondele 2020-08-19 19:21:41 +02:00
parent 2deb08a529
commit a1ad8604a1
1 changed files with 5 additions and 4 deletions
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9
src/evaluate.cpp
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@ -53,10 +53,11 @@ namespace Eval {
UCI::OptionsMap defaults;
UCI::init(defaults);
std::cerr << "NNUE evaluation used, but the network file " << eval_file << " was not loaded successfully. "
<< "These network evaluation parameters must be available, and compatible with this version of the code. "
<< "The UCI option EvalFile might need to specify the full path, including the directory/folder name, to the file. "
<< "The default net can be downloaded from: https://tests.stockfishchess.org/api/nn/"+std::string(defaults["EvalFile"]) << std::endl;
sync_cout << "info string ERROR: NNUE evaluation used, but the network file " << eval_file << " was not loaded successfully." << sync_endl;
sync_cout << "info string ERROR: The UCI option EvalFile might need to specify the full path, including the directory/folder name, to the file." << sync_endl;
sync_cout << "info string ERROR: The default net can be downloaded from: https://tests.stockfishchess.org/api/nn/"+std::string(defaults["EvalFile"]) << sync_endl;
sync_cout << "info string ERROR: If the UCI option Use NNUE is set to true, network evaluation parameters compatible with the program must be available." << sync_endl;
sync_cout << "info string ERROR: The engine will be terminated now." << sync_endl;
std::exit(EXIT_FAILURE);
}