.. _program_listing_file__tmp_ws_src_ecl_lite_ecl_errors_include_ecl_errors_compile_time_assert.hpp:

Program Listing for File compile_time_assert.hpp
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|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_ecl_lite_ecl_errors_include_ecl_errors_compile_time_assert.hpp>` (``/tmp/ws/src/ecl_lite/ecl_errors/include/ecl/errors/compile_time_assert.hpp``)

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

.. code-block:: cpp

   
   /*****************************************************************************
   ** Ifdefs
   *****************************************************************************/
   
   #ifndef ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_
   #define ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_
   
   /*****************************************************************************
   ** Includes
   *****************************************************************************/
   
   #include "macros.hpp"
   
   /*****************************************************************************
   ** Namespaces
   *****************************************************************************/
   
   namespace ecl {
   
   
   /*****************************************************************************
   ** Classes
   *****************************************************************************/
   template <bool> struct COMPILE_TIME_FAILURE;
   
   template <> struct COMPILE_TIME_FAILURE<true> {};
   
   template <int x> struct static_assert_test {};
   
   } // namespace ecl
   #define ecl_compile_time_assert( logical_expression ) \
      typedef ecl::static_assert_test<sizeof(ecl::COMPILE_TIME_FAILURE< static_cast<bool>(logical_expression) >)> JOIN(compile_time_check,__LINE__) [[gnu::unused]]
   
   // If the (void)ERROR_##message is absent, we get unused variable warnings.
   #define ecl_verbose_compile_time_assert( logical_expression, message ) \
       { \
           ecl::COMPILE_TIME_FAILURE<( (logical_expression) != 0)> ERROR_##message; \
           (void)ERROR_##message; \
       }
   
   #endif /* ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_ */