.. _program_listing_file__tmp_ws_src_ecl_core_ecl_concepts_include_ecl_concepts_streams.hpp:

Program Listing for File streams.hpp
====================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_ecl_core_ecl_concepts_include_ecl_concepts_streams.hpp>` (``/tmp/ws/src/ecl_core/ecl_concepts/include/ecl/concepts/streams.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   /*****************************************************************************
   ** Ifdefs
   *****************************************************************************/
   
   #ifndef ECL_CONCEPTS_STREAMS_HPP_
   #define ECL_CONCEPTS_STREAMS_HPP_
   
   /*****************************************************************************
   ** Includes
   *****************************************************************************/
   
   #include "macros.hpp"
   
   /*****************************************************************************
   ** Namespaces
   *****************************************************************************/
   
   namespace ecl {
   
   /*****************************************************************************
   ** Concept [Stream]
   *****************************************************************************/
   
   template <typename Implementation>
   class StreamConcept {
       public:
   
           ecl_compile_time_concept_test(StreamConcept)
           {
               stream << 'a';
               stream.flush();
           }
   
       private:
           // Putting instantiations here actually saves instantiation (which can cause a
           // problem if there is no default constructor).
           Implementation stream;
   };
   
   } // namespace ecl
   
   #endif /* ECL_CONCEPTS_STREAMS_HPP_ */