MMgc/StaticAssert.h

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  39
  40 #ifndef __StaticAssert__
  41 #define __StaticAssert__
  42
  43 namespace MMgc
  44 {
  45     template <int> struct static_assert_MMgc {};
  46     template <bool> struct STATIC_ASSERTION_FAILED;
  47     template <> struct STATIC_ASSERTION_FAILED<true> {};
  48 }
  49
  50 #define _MMGC_JOIN(x,y) _MMGC_DO_JOIN(x,y)
  51 #define _MMGC_DO_JOIN(x,y) _MMGC_DO_JOIN2(x,y)
  52 #define _MMGC_DO_JOIN2(x,y) x##y
  53
  54 #define MMGC_STATIC_ASSERT(condition) \
  55     typedef ::MMgc::static_assert_MMgc<sizeof (::MMgc::STATIC_ASSERTION_FAILED<(bool)(condition)>)> \
  56         _MMGC_JOIN(MMgc_static_assert_line_, __LINE__)
  57
  58 #endif /* __StaticAssert__ */