anchor.diff:  
   
            ! This routine initializes AirfoilInfo by reading the airfoil files and generating the spline coefficients.
  -
  -
  -      USE                                    :: AirfoilInfo_Types
  -      USE                                    :: ISO_FORTRAN_ENV , ONLY : IOSTAT_EOR
  -
  -      IMPLICIT                                  NONE
   
   
            ! Argument declarations.
  
positive.code: 
     USE                                             AirfoilInfo_Types
     USE                                             NWTC_FitPack
  
     IMPLICIT NONE
  
  
negative.code: 
  
           ! This routine reads an airfoil file.
  
  
           ! Argument declarations.
  