text: /* This is free and unencumbered software released into the public domain.
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   * of this software dedicate any and all copyright interest in the
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  /*!
   * \file none.hpp
   * \brief Exports the none meta function.
   **/
  #ifndef INCG_PL_META_NONE_HPP
  #define INCG_PL_META_NONE_HPP
  #include "bool_constant.hpp" // pl::meta::bool_constant
  #include "disjunction.hpp"   // pl::meta::disjunction
  #include <ciso646>           // not
  
  namespace pl {
  namespace meta {
  /*!
   * \brief Will behave like std::true_type if none of the traits passed in
   *        are satisfied. Otherwise will behave like std::false_type.
   **/
  template<typename... Traits>
  using none = bool_constant<not disjunction<Traits...>::value>;
  } // namespace meta
  } // namespace pl
  #endif // INCG_PL_META_NONE_HPP
  