compile_time_assert.hpp
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1 
10 /*****************************************************************************
11 ** Ifdefs
12 *****************************************************************************/
13 
14 #ifndef ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_
15 #define ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_
16 
17 /*****************************************************************************
18 ** Includes
19 *****************************************************************************/
20 
21 #include "macros.hpp"
22 
23 /*****************************************************************************
24 ** Namespaces
25 *****************************************************************************/
26 
27 namespace ecl {
28 
29 
30 /*****************************************************************************
31 ** Classes
32 *****************************************************************************/
37 template <bool> struct COMPILE_TIME_FAILURE;
38 
39 template <> struct COMPILE_TIME_FAILURE<true> {};
40 
41 template <int x> struct static_assert_test {};
42 
43 }; // namespace ecl
60 #define ecl_compile_time_assert( logical_expression ) \
61  typedef ecl::static_assert_test<sizeof(ecl::COMPILE_TIME_FAILURE< static_cast<bool>(logical_expression) >)> JOIN(compile_time_check,__LINE__)
62 
78 // If the (void)ERROR_##message is absent, we get unused variable warnings.
79 #define ecl_verbose_compile_time_assert( logical_expression, message ) \
80  { \
81  ecl::COMPILE_TIME_FAILURE<( (logical_expression) != 0)> ERROR_##message; \
82  (void)ERROR_##message; \
83  }
84 
85 #endif /* ECL_ERRORS_COMPILE_TIME_ASSERT_HPP_ */

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Author(s): Roc, wangpeng@droid.ac.cn
autogenerated on Sat Oct 10 2020 03:28:13