StaticAssert.hpp

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#ifndef BLOCXX_STATIC_ASSERT_HPP_INCLUDE_GUARD_
#define BLOCXX_STATIC_ASSERT_HPP_INCLUDE_GUARD_



#include "blocxx/BLOCXX_config.h"

namespace BLOCXX_NAMESPACE
{
   template <bool x> struct StaticAssertionFailure;

   template <>
   struct StaticAssertionFailure<true>
   {
   };
}

// Need this first macro because ## doesn't expand vars, and we need an intermediate step
#define BLOCXX_STATIC_ASSERT_CAT(a, b) a ## b
#define BLOCXX_STATIC_ASSERT_AUX(a, b) BLOCXX_STATIC_ASSERT_CAT(a, b)

#define BLOCXX_STATIC_ASSERT( B ) \
enum { \
   BLOCXX_STATIC_ASSERT_AUX(blocxx_static_assert_enum_, __LINE__) \
   = sizeof( ::blocxx::StaticAssertionFailure< (bool)( B ) > ) \
}

#endif