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template<bool>
struct CompileTimeChecker
{
@CompileTimeChecker(...){} //’è‹`‚ª•K—v‚¾‚Á‚½
};

#define STATIC_CHECK(expr, msg) \
{\
@class ERROR_##msg {};\
@CompileTimeChecker<(expr) != 0> c = CompileTimeChecker<(expr) != 0>((ERROR_##msg())); \
@(void)sizeof(c); \
}


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