#define MASSERT(e) ASSERT(e) return ()
#define MASSERT2(e,msg) ASSERT2(e,msg) return ()
#define ASSERTM(e) do { let { _mbool = (e) } }
#define MASSERT(e) ASSERT(e) return ()
#define MASSERT2(e,msg) ASSERT2(e,msg) return ()
#define ASSERTM(e) do { let { _mbool = (e) } }