template< IsFixedSized> struct fixed_sized;
    template< Size> struct capacity;
    template<typename Alloc> struct allocator;
    template< AllowMultipleReads> struct allow_multiple_reads;
  }
}

  
    template<typename T,  Options> class queue;
  }
}

  
    template<typename T,  Options> class spsc_queue;
  }
}

  
    template<typename T,  Options> struct spsc_value;
  }
}

  
    template<typename T,  Options> class stack;
  }
}