#ifndef _NR_UTILS_H_
#define _NR_UTILS_H_


// Next lines commented by Lluís Ros, to avoid nasty warnings about non-used
// static variables. Of the following static variables, those really used by
// my_dpythag.c and my_dsvdcmp.c have been copied to these files, together with
// the macros defined on them. (Lluís Ros) 
//
// 
// 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))
// 
// Next lines commented by Lluís Ros, to avoid unnecessary declarations
// for the cuik system. 
//
// 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 ? fabs(a) : -fabs(a))


void nrerror(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);
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);
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_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);



#endif /* _NR_UTILS_H_ */