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Fix empty EvalFile option

some GUIs send an empty string for EvalFile, in that case explicitly try the default name

fixes https://github.com/official-stockfish/Stockfish/issues/3675

closes https://github.com/official-stockfish/Stockfish/pull/3678

No functional change.
pull/3680/head
Joost VandeVondele 2021-08-26 22:44:49 +02:00
parent d754ea50a8
commit af0d82792e
1 changed files with 5 additions and 3 deletions

View File

@ -78,6 +78,8 @@ namespace Eval {
return;
string eval_file = string(Options["EvalFile"]);
if (eval_file.empty())
eval_file = EvalFileDefaultName;
#if defined(DEFAULT_NNUE_DIRECTORY)
#define stringify2(x) #x
@ -118,16 +120,16 @@ namespace Eval {
void NNUE::verify() {
string eval_file = string(Options["EvalFile"]);
if (eval_file.empty())
eval_file = EvalFileDefaultName;
if (useNNUE && eval_file_loaded != eval_file)
{
UCI::OptionsMap defaults;
UCI::init(defaults);
string msg1 = "If the UCI option \"Use NNUE\" is set to true, network evaluation parameters compatible with the engine must be available.";
string msg2 = "The option is set to true, but the network file " + eval_file + " was not loaded successfully.";
string msg3 = "The UCI option EvalFile might need to specify the full path, including the directory name, to the network file.";
string msg4 = "The default net can be downloaded from: https://tests.stockfishchess.org/api/nn/" + string(defaults["EvalFile"]);
string msg4 = "The default net can be downloaded from: https://tests.stockfishchess.org/api/nn/" + std::string(EvalFileDefaultName);
string msg5 = "The engine will be terminated now.";
sync_cout << "info string ERROR: " << msg1 << sync_endl;