replace std::runtime_error with Log::Fatal (#2816)

* replace std::runtime_error with Log::Fatal

* Update c_api.cpp

src/boosting/prediction_early_stop.cpp

@@ -81,7 +81,7 @@ PredictionEarlyStopInstance CreatePredictionEarlyStopInstance(const std::string&
   } else if (type == "binary") {
     return CreateBinary(config);
   } else {
-    throw std::runtime_error("Unknown early stopping type: " + type);
+    Log::Fatal("Unknown early stopping type: %s", type.c_str());
   }
 }
 

src/c_api.cpp

@@ -1130,7 +1130,7 @@ int LGBM_DatasetSetField(DatasetHandle handle,
   } else if (type == C_API_DTYPE_FLOAT64) {
     is_success = dataset->SetDoubleField(field_name, reinterpret_cast<const double*>(field_data), static_cast<int32_t>(num_element));
   }
-  if (!is_success) { throw std::runtime_error("Input data type error or field not found"); }
+  if (!is_success) { Log::Fatal("Input data type error or field not found"); }
   API_END();
 }
 
@@ -1152,7 +1152,7 @@ int LGBM_DatasetGetField(DatasetHandle handle,
     *out_type = C_API_DTYPE_FLOAT64;
     is_success = true;
   }
-  if (!is_success) { throw std::runtime_error("Field not found"); }
+  if (!is_success) { Log::Fatal("Field not found"); }
   if (*out_ptr == nullptr) { *out_len = 0; }
   API_END();
 }
@@ -1802,7 +1802,7 @@ RowFunctionFromDenseMatric(const void* data, int num_row, int num_col, int data_
       };
     }
   }
-  throw std::runtime_error("Unknown data type in RowFunctionFromDenseMatric");
+  Log::Fatal("Unknown data type in RowFunctionFromDenseMatric");
 }
 
 std::function<std::vector<std::pair<int, double>>(int row_idx)>
@@ -1906,7 +1906,7 @@ RowFunctionFromCSR(const void* indptr, int indptr_type, const int32_t* indices,
       };
     }
   }
-  throw std::runtime_error("Unknown data type in RowFunctionFromCSR");
+  Log::Fatal("Unknown data type in RowFunctionFromCSR");
 }
 
 std::function<std::pair<int, double>(int idx)>
@@ -1971,7 +1971,7 @@ IterateFunctionFromCSC(const void* col_ptr, int col_ptr_type, const int32_t* ind
       };
     }
   }
-  throw std::runtime_error("Unknown data type in CSC matrix");
+  Log::Fatal("Unknown data type in CSC matrix");
 }
 
 CSC_RowIterator::CSC_RowIterator(const void* col_ptr, int col_ptr_type, const int32_t* indices,

src/io/dataset.cpp

@@ -1487,7 +1487,7 @@ void PushClearIfEmpty(std::vector<T>* dest, const size_t dest_len,
 
 void Dataset::AddFeaturesFrom(Dataset* other) {
   if (other->num_data_ != num_data_) {
-    throw std::runtime_error(
+    Log::Fatal(
         "Cannot add features from other Dataset with a different number of "
         "rows");
   }