text: #ifndef ENZO_DEFINES_H
  #define ENZO_DEFINES_H
  
  #define ENZO_FAIL     0
  #define ENZO_SUCCESS  1
  
  #define FALSE         0
  #define TRUE          1
  
  #define ENZO_FLOAT_UNDEFINED  -99999.0
  #define ISYM         "d"
  
  #define ENZO_INDEX_UNDEFINED -1
  
  #define MAX_DIMENSION                3
  #define MAX_NUMBER_OF_BARYON_FIELDS 29
  
  #define MAX_COLOR                20
  #define huge                     1.0e+20
  #define MAX_ANY_SINGLE_DIRECTION (1024+6)
  #define tiny                     1.0e-20
  
  #define NUM_FIELDS 34
  
  #define NINT(A)   ((int) ((A) + 0.5*((A)>0?1:-1)))
  
  #define FORTRAN_NAME(NAME) NAME##_
  
  #define Density          0
  #define TotalEnergy      1
  #define InternalEnergy   2
  #define Velocity1        4
  #define Velocity2        5
  #define Velocity3        6
  #define ElectronDensity  7
  #define HIDensity        8
  #define HIIDensity       9
  #define HeIDensity       10
  #define HeIIDensity      11
  #define HeIIIDensity     12
  #define HMDensity        13
  #define H2IDensity       14
  #define H2IIDensity      15
  #define DIDensity        16
  #define DIIDensity       17
  #define HDIDensity       18
  #define Metallicity      19
  
  #endif /* ENZO_DEFINES_HPP */
  