anchor.diff:        mwPointer, intent(in) :: pm
         end function mxGetElementSize
   !-----
  -      real(8) function mxGetEps
  +      real(8) function mxGetEps()
         end function mxGetEps
   !-----
         mwPointer function mxGetField(pm, fieldindex, fieldname)
  
positive.code:       mwPointer, intent(in) :: mx
        end function mxGetN
  !-----
        real(8) function mxGetNaN
        end function mxGetNaN
  !-----
        mwSize function mxGetNumberOfDimensions( mx )
  
negative.code:       mwPointer, intent(in) :: pm
        end function mxGetImagData
  !-----
        real(8) function mxGetInf()
        end function mxGetInf
  !-----
        mwPointer function mxGetIr(pm)
  