text: /* --------------------------------------------------------------------------
     Public domain memory allocation and de-allocation routine header file.
     Taken from Appendix B of: 
     Numerical Recipes in C: The Art of Scientific Computing, Second Edition,
     Cambridge University Press, 1992
  ----------------------------------------------------------------------------*/
  #ifndef _MEMALLOC_H_
  #define _MEMALLOC_H_
  
  static float sqrarg;
  #define SQR(a) ((sqrarg=(a)) == 0.0 ? 0.0 : sqrarg*sqrarg)
  
  static double dsqrarg;
  #define DSQR(a) ((dsqrarg=(a)) == 0.0 ? 0.0 : dsqrarg*dsqrarg)
  
  static double dmaxarg1,dmaxarg2;
  #define DMAX(a,b) (dmaxarg1=(a),dmaxarg2=(b),(dmaxarg1) > (dmaxarg2) ?\
  (dmaxarg1) : (dmaxarg2))
  
  static double dminarg1,dminarg2;
  #define DMIN(a,b) (dminarg1=(a),dminarg2=(b),(dminarg1) < (dminarg2) ?\
  (dminarg1) : (dminarg2))
  
  static float maxarg1,maxarg2;
  #define FMAX(a,b) (maxarg1=(a),maxarg2=(b),(maxarg1) > (maxarg2) ?\
  (maxarg1) : (maxarg2))
  
  static float minarg1,minarg2;
  #define FMIN(a,b) (minarg1=(a),minarg2=(b),(minarg1) < (minarg2) ?\
  (minarg1) : (minarg2))
  
  static long lmaxarg1,lmaxarg2;
  #define LMAX(a,b) (lmaxarg1=(a),lmaxarg2=(b),(lmaxarg1) > (lmaxarg2) ?\
  (lmaxarg1) : (lmaxarg2))
  
  static long lminarg1,lminarg2;
  #define LMIN(a,b) (lminarg1=(a),lminarg2=(b),(lminarg1) < (lminarg2) ?\
  (lminarg1) : (lminarg2))
  
  static int imaxarg1,imaxarg2;
  #define IMAX(a,b) (imaxarg1=(a),imaxarg2=(b),(imaxarg1) > (imaxarg2) ?\
  (imaxarg1) : (imaxarg2))
  
  static int iminarg1,iminarg2;
  #define IMIN(a,b) (iminarg1=(a),iminarg2=(b),(iminarg1) < (iminarg2) ?\
  (iminarg1) : (iminarg2))
  
  #define SIGN(a,b) ((b) >= 0.0 ? fflute_abs(a) : -fflute_abs(a))
  #define MAX(a,b) ((a)>(b) ? (a) : (b))
  #define MIN(a,b) ((a)<(b) ? (a) : (b))
  
  void runtimeError(char error_text[]);
  float *vector(long nl, long nh);
  int *ivector(long nl, long nh);
  unsigned char *cvector(long nl, long nh);
  unsigned long *lvector(long nl, long nh);
  double *dvector(long nl, long nh);
  float **matrix(long nrl, long nrh, long ncl, long nch);
  double **dmatrix(long nrl, long nrh, long ncl, long nch);
  int **imatrix(long nrl, long nrh, long ncl, long nch);
  char **cmatrix(long nrl, long nrh, long ncl, long nch);
  unsigned long **lmatrix(long nrl, long nrh, long ncl, long nch);
  float **submatrix(float **a, long oldrl, long oldrh, long oldcl, long oldch,
                    long newrl, long newcl);
  float **convert_matrix(float *a, long nrl, long nrh, long ncl, long nch);
  float ***f3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh);
  unsigned long ***lmatrix3D(long nrl, long nrh, long ncl, long nch, long ndl, long ndh);
  int ***imatrix3D(int nrl, int nrh, int ncl, int nch, int ndl, int ndh);
  
  void free_vector(float *v, long nl, long nh);
  void free_ivector(int *v, long nl, long nh);
  void free_cvector(unsigned char *v, long nl, long nh);
  void free_lvector(unsigned long *v, long nl, long nh);
  void free_dvector(double *v, long nl, long nh);
  void free_matrix(float **m, long nrl, long nrh, long ncl, long nch);
  void free_dmatrix(double **m, long nrl, long nrh, long ncl, long nch);
  void free_imatrix(int **m, long nrl, long nrh, long ncl, long nch);
  void free_cmatrix(char **m, long nrl, long nrh, long ncl, long nch);
  void free_lmatrix(unsigned long **m, long nrl, long nrh, long ncl, long nch);
  void free_submatrix(float **b, long nrl, long nrh, long ncl, long nch);
  void free_convert_matrix(float **b, long nrl, long nrh, long ncl, long nch);
  void free_f3tensor(float ***t, long nrl, long nrh, long ncl, long nch,
                     long ndl, long ndh);
  void free_lmatrix3D(unsigned long ***t, long nrl, long nrh, long ncl, long nch,
                     long ndl, long ndh);
  void free_imatrix3D(int ***t, int nrl, int nrh, int ncl, int nch, int ndl, int ndh);
  int comp_float(const void *i, const void *j);
  int comp_int(const void *i, const void *j);
  
  #endif /* _MEMALLOC_H_ */
  