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add SPROUT_STATIC_ASSERT variadic macro version
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1 changed files with 21 additions and 3 deletions
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@ -9,17 +9,35 @@
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#define SPROUT_STATIC_ASSERT_HPP
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#include <sprout/config.hpp>
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#include <sprout/preprocessor/config.hpp>
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#include <sprout/preprocessor/cat.hpp>
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#include <sprout/preprocessor/stringize.hpp>
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#include <sprout/preprocessor/variadic/size.hpp>
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//
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// SPROUT_STATIC_ASSERT_MSG
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// SPROUT_STATIC_ASSERT
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// SPROUT_STATIC_ASSERT_PREPROCESSED
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//
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#define SPROUT_STATIC_ASSERT_MSG(COND, MESSAGE) \
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static_assert(COND, MESSAGE)
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#define SPROUT_STATIC_ASSERT(COND) \
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//
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// SPROUT_STATIC_ASSERT
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//
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#define SPROUT_STATIC_ASSERT_1(COND) \
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SPROUT_STATIC_ASSERT_MSG(COND, #COND)
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#if SPROUT_PP_VARIADICS
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# define SPROUT_STATIC_ASSERT_2(COND, MESSAGE) \
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SPROUT_STATIC_ASSERT_MSG(COND, MESSAGE)
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# define SPROUT_STATIC_ASSERT(...) \
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SPROUT_PP_CAT(SPROUT_STATIC_ASSERT_, SPROUT_PP_VARIADIC_SIZE(__VA_ARGS__))(__VA_ARGS__)
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#else
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# define SPROUT_STATIC_ASSERT(expr) \
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SPROUT_STATIC_ASSERT_1(expr)
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#endif
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//
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// SPROUT_STATIC_ASSERT_PREPROCESSED
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//
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#define SPROUT_STATIC_ASSERT_PREPROCESSED(COND) \
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SPROUT_STATIC_ASSERT_MSG(COND, #COND " \n[[preprocessed]]: " SPROUT_PP_STRINGIZE(COND))
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