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add SPROUT_STATIC_ASSERT variadic macro version

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bolero-MURAKAMI 2014-07-03 23:41:40 +09:00
parent 253477ed32
commit fd37cb02d3
1 changed files with 21 additions and 3 deletions
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24
sprout/static_assert.hpp
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@ -9,17 +9,35 @@
#define SPROUT_STATIC_ASSERT_HPP
#include <sprout/config.hpp>
#include <sprout/preprocessor/config.hpp>
#include <sprout/preprocessor/cat.hpp>
#include <sprout/preprocessor/stringize.hpp>
#include <sprout/preprocessor/variadic/size.hpp>
//
// SPROUT_STATIC_ASSERT_MSG
// SPROUT_STATIC_ASSERT
// SPROUT_STATIC_ASSERT_PREPROCESSED
//
#define SPROUT_STATIC_ASSERT_MSG(COND, MESSAGE) \
static_assert(COND, MESSAGE)
#define SPROUT_STATIC_ASSERT(COND) \
//
// SPROUT_STATIC_ASSERT
//
#define SPROUT_STATIC_ASSERT_1(COND) \
SPROUT_STATIC_ASSERT_MSG(COND, #COND)
#if SPROUT_PP_VARIADICS
# define SPROUT_STATIC_ASSERT_2(COND, MESSAGE) \
SPROUT_STATIC_ASSERT_MSG(COND, MESSAGE)
# define SPROUT_STATIC_ASSERT(...) \
SPROUT_PP_CAT(SPROUT_STATIC_ASSERT_, SPROUT_PP_VARIADIC_SIZE(__VA_ARGS__))(__VA_ARGS__)
#else
# define SPROUT_STATIC_ASSERT(expr) \
SPROUT_STATIC_ASSERT_1(expr)
#endif
//
// SPROUT_STATIC_ASSERT_PREPROCESSED
//
#define SPROUT_STATIC_ASSERT_PREPROCESSED(COND) \
SPROUT_STATIC_ASSERT_MSG(COND, #COND " \n[[preprocessed]]: " SPROUT_PP_STRINGIZE(COND))