src/base/googleinit.h

// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// ---
// Author: Jacob Hoffman-Andrews

#ifndef GOOGLEINIT_H
#  define GOOGLEINIT_H

class GoogleInitializer {
 public:
  using void_function = void (*)();
  GoogleInitializer(const char* /*unused*/, void_function f) { f(); }
};

#define REGISTER_MODULE_INITIALIZER(name, body)       \
  namespace {                                         \
  static void google_init_module_##name() { body; }   \
  GoogleInitializer google_initializer_module_##name( \
      #name, google_init_module_##name);              \
  }

#endif /* GOOGLEINIT_H */