chore: import upstream snapshot with attribution

test/cpp/inference/api/config_printer.h

@@ -0,0 +1,86 @@
+/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
+#include <ostream>
+#include <string>
+
+#include "paddle/fluid/inference/api/paddle_inference_api.h"
+
+namespace paddle {
+namespace inference {
+
+thread_local int num_spaces = 0;
+
+static std::string GenSpaces(int num_spaces) {
+  std::ostringstream os;
+  for (int i = 0; i < num_spaces; ++i) {
+    os << "  ";
+  }
+  return os.str();
+}
+
+std::ostream &operator<<(std::ostream &os,
+                         const PaddlePredictor::Config &config) {
+  os << GenSpaces(num_spaces) << "PaddlePredictor::Config {\n";
+  num_spaces++;
+  os << GenSpaces(num_spaces) << "model_dir: " << config.model_dir << "\n";
+  num_spaces--;
+  os << GenSpaces(num_spaces) << "}\n";
+  return os;
+}
+
+std::ostream &operator<<(std::ostream &os, const NativeConfig &config) {
+  os << GenSpaces(num_spaces) << "NativeConfig {\n";
+  num_spaces++;
+  os << *reinterpret_cast<const PaddlePredictor::Config *>(&config);
+  os << GenSpaces(num_spaces) << "use_gpu: " << config.use_gpu << "\n";
+  os << GenSpaces(num_spaces) << "device: " << config.device << "\n";
+  os << GenSpaces(num_spaces)
+     << "fraction_of_gpu_memory: " << config.fraction_of_gpu_memory << "\n";
+  os << GenSpaces(num_spaces)
+     << "specify_input_name: " << config.specify_input_name << "\n";
+  num_spaces--;
+  os << GenSpaces(num_spaces) << "}\n";
+  return os;
+}
+
+std::ostream &operator<<(std::ostream &os, const AnalysisConfig &config) {
+  os << GenSpaces(num_spaces) << "AnalysisConfig {\n";
+  num_spaces++;
+  os << config.ToNativeConfig();
+  if (!config.model_from_memory()) {
+    os << GenSpaces(num_spaces) << "prog_file: " << config.prog_file() << "\n";
+    os << GenSpaces(num_spaces) << "param_file: " << config.params_file()
+       << "\n";
+  } else {
+    os << GenSpaces(num_spaces)
+       << "prog_file and param_file: load from memory \n";
+  }
+  os << GenSpaces(num_spaces) << "enable_ir_optim: " << config.ir_optim()
+     << "\n";
+  os << GenSpaces(num_spaces)
+     << "cpu_num_threads: " << config.cpu_math_library_num_threads() << "\n";
+  os << GenSpaces(num_spaces)
+     << "use_tensorrt: " << config.tensorrt_engine_enabled() << "\n";
+  os << GenSpaces(num_spaces) << "use_onednn: " << config.onednn_enabled()
+     << "\n";
+  num_spaces--;
+  os << GenSpaces(num_spaces) << "}\n";
+  return os;
+}
+
+}  // namespace inference
+}  // namespace paddle