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src/macrodefs.h 3.08 KB
b5d9e433   Peter M. Groen   Fixed License Hea...
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  /* ****************************************************************************
   * Copyright 2019 Open Systems Development BV                                 *
   *                                                                            *
   * Permission is hereby granted, free of charge, to any person obtaining a    *
   * copy of this software and associated documentation files (the "Software"), *
   * to deal in the Software without restriction, including without limitation  *
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,   *
   * and/or sell copies of the Software, and to permit persons to whom the      *
   * Software is furnished to do so, subject to the following conditions:       *
   *                                                                            *
   * The above copyright notice and this permission notice shall be included in *
   * all copies or substantial portions of the Software.                        *
   *                                                                            *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   *
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    *
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    *
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        *
   * DEALINGS IN THE SOFTWARE.                                                  *
   * ***************************************************************************/
51becbde   Peter M. Groen   Committed the ent...
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  #ifndef OSDEV_COMPONENTS_MQTT_MACRODEFS_H
  #define OSDEV_COMPONENTS_MQTT_MACRODEFS_H
  
  #include <type_traits>
  
  #include "compiletimestring.h"
  
  /// @brief Helper macro to stringify a symbol
  #define OSDEV_COMPONENTS_STRINGIFY(x) #x
  
  /// @brief Use this macro to safely stringify a symbol
  /// This will also work for nested macro's
  #define OSDEV_COMPONENTS_TOSTRING(x) OSDEV_COMPONENTS_STRINGIFY(x)
  
  /// @brief Helper macro to combine two symbols
  #define OSDEV_COMPONENTS_COMBINER(x, y) x##y
  
  /// @brief Use this macro to safely combine two symbols
  /// This will also work for nested macro's
  #define OSDEV_COMPONENTS_COMBINE(x, y) OSDEV_COMPONENTS_COMBINER(x, y)
  
  /// @brief Macro that reduces a path to the basename
  #define OSDEV_COMPONENTS_MANAGEDBASEFILENAME \
      OSDEV_COMPONENTS_CSTRING_BOUNDED(__FILE__, osdev::components::rfind(__FILE__, '/') + 1, sizeof(__FILE__) - 1)
  
  /// @brief Compiletime test if an instance derives from a certain base class
  #define OSDEV_COMPONENTS_DERIVESFROM(derived, baseType)                                                                       \
      static_assert(std::is_base_of<baseType,                                                                                \
                        typename std::remove_pointer<typename std::remove_reference<decltype(derived)>::type>::type>::value, \
          OSDEV_COMPONENTS_TOSTRING(derived) " must be derived from " OSDEV_COMPONENTS_TOSTRING(baseType))
  
  #endif  //OSDEV_COMPONENTS_MQTT_MACRODEFS_H