gcc/testsuite/gfortran.dg/pr16433.f


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! { dg-do-compile }
      real x
      double precision dx
      x = x'2ffde' ! { dg-warning "exadecimal constant" "Hex constant can't begin with x" }
      dx = x  ! { dg-bogus "exadecimal constant" "Hex constant where there is none" }
      end