nrutil.c
上传用户:szb0815
上传日期:2007-06-13
资源大小:338k
文件大小:8k
- /* CAUTION: This is the ANSI C (only) version of the Numerical Recipes
- utility file nrutil.c. Do not confuse this file with the same-named
- file nrutil.c that is supplied in the 'misc' subdirectory.
- *That* file is the one from the book, and contains both ANSI and
- traditional K&R versions, along with #ifdef macros to select the
- correct version. *This* file contains only ANSI C. */
- #include <stdio.h>
- #include <stddef.h>
- #include <stdlib.h>
- #define NR_END 1
- #define FREE_ARG char*
- void nrerror(char error_text[])
- /* Numerical Recipes standard error handler */
- {
- fprintf(stderr,"Numerical Recipes run-time error...n");
- fprintf(stderr,"%sn",error_text);
- fprintf(stderr,"...now exiting to system...n");
- exit(1);
- }
- float *vector(long nl, long nh)
- /* allocate a float vector with subscript range v[nl..nh] */
- {
- float *v;
- v=(float *)malloc((size_t) ((nh-nl+1+NR_END)*sizeof(float)));
- if (!v) nrerror("allocation failure in vector()");
- return v-nl+NR_END;
- }
- int *ivector(long nl, long nh)
- /* allocate an int vector with subscript range v[nl..nh] */
- {
- int *v;
- v=(int *)malloc((size_t) ((nh-nl+1+NR_END)*sizeof(int)));
- if (!v) nrerror("allocation failure in ivector()");
- return v-nl+NR_END;
- }
- unsigned char *cvector(long nl, long nh)
- /* allocate an unsigned char vector with subscript range v[nl..nh] */
- {
- unsigned char *v;
- v=(unsigned char *)malloc((size_t) ((nh-nl+1+NR_END)*sizeof(unsigned char)));
- if (!v) nrerror("allocation failure in cvector()");
- return v-nl+NR_END;
- }
- unsigned long *lvector(long nl, long nh)
- /* allocate an unsigned long vector with subscript range v[nl..nh] */
- {
- unsigned long *v;
- v=(unsigned long *)malloc((size_t) ((nh-nl+1+NR_END)*sizeof(long)));
- if (!v) nrerror("allocation failure in lvector()");
- return v-nl+NR_END;
- }
- float *dvector(long nl, long nh)
- /* allocate a float vector with subscript range v[nl..nh] */
- {
- float *v;
- v=(float *)malloc((size_t) ((nh-nl+1+NR_END)*sizeof(float)));
- if (!v) nrerror("allocation failure in dvector()");
- return v-nl+NR_END;
- }
- float **matrix(long nrl, long nrh, long ncl, long nch)
- /* allocate a float matrix with subscript range m[nrl..nrh][ncl..nch] */
- {
- long i, nrow=nrh-nrl+1,ncol=nch-ncl+1;
- float **m;
- /* allocate pointers to rows */
- m=(float **) malloc((size_t)((nrow+NR_END)*sizeof(float*)));
- if (!m) nrerror("allocation failure 1 in matrix()");
- m += NR_END;
- m -= nrl;
- /* allocate rows and set pointers to them */
- m[nrl]=(float *) malloc((size_t)((nrow*ncol+NR_END)*sizeof(float)));
- if (!m[nrl]) nrerror("allocation failure 2 in matrix()");
- m[nrl] += NR_END;
- m[nrl] -= ncl;
- for(i=nrl+1;i<=nrh;i++) m[i]=m[i-1]+ncol;
- /* return pointer to array of pointers to rows */
- return m;
- }
- float **dmatrix(long nrl, long nrh, long ncl, long nch)
- /* allocate a float matrix with subscript range m[nrl..nrh][ncl..nch] */
- {
- long i, nrow=nrh-nrl+1,ncol=nch-ncl+1;
- float **m;
- /* allocate pointers to rows */
- m=(float **) malloc((size_t)((nrow+NR_END)*sizeof(float*)));
- if (!m) nrerror("allocation failure 1 in matrix()");
- m += NR_END;
- m -= nrl;
- /* allocate rows and set pointers to them */
- m[nrl]=(float *) malloc((size_t)((nrow*ncol+NR_END)*sizeof(float)));
- if (!m[nrl]) nrerror("allocation failure 2 in matrix()");
- m[nrl] += NR_END;
- m[nrl] -= ncl;
- for(i=nrl+1;i<=nrh;i++) m[i]=m[i-1]+ncol;
- /* return pointer to array of pointers to rows */
- return m;
- }
- int **imatrix(long nrl, long nrh, long ncl, long nch)
- /* allocate a int matrix with subscript range m[nrl..nrh][ncl..nch] */
- {
- long i, nrow=nrh-nrl+1,ncol=nch-ncl+1;
- int **m;
- /* allocate pointers to rows */
- m=(int **) malloc((size_t)((nrow+NR_END)*sizeof(int*)));
- if (!m) nrerror("allocation failure 1 in matrix()");
- m += NR_END;
- m -= nrl;
- /* allocate rows and set pointers to them */
- m[nrl]=(int *) malloc((size_t)((nrow*ncol+NR_END)*sizeof(int)));
- if (!m[nrl]) nrerror("allocation failure 2 in matrix()");
- m[nrl] += NR_END;
- m[nrl] -= ncl;
- for(i=nrl+1;i<=nrh;i++) m[i]=m[i-1]+ncol;
- /* return pointer to array of pointers to rows */
- return m;
- }
- float **submatrix(float **a, long oldrl, long oldrh, long oldcl, long oldch,
- long newrl, long newcl)
- /* point a submatrix [newrl..][newcl..] to a[oldrl..oldrh][oldcl..oldch] */
- {
- long i,j,nrow=oldrh-oldrl+1,ncol=oldcl-newcl;
- float **m;
- /* allocate array of pointers to rows */
- m=(float **) malloc((size_t) ((nrow+NR_END)*sizeof(float*)));
- if (!m) nrerror("allocation failure in submatrix()");
- m += NR_END;
- m -= newrl;
- /* set pointers to rows */
- for(i=oldrl,j=newrl;i<=oldrh;i++,j++) m[j]=a[i]+ncol;
- /* return pointer to array of pointers to rows */
- return m;
- }
- float **convert_matrix(float *a, long nrl, long nrh, long ncl, long nch)
- /* allocate a float matrix m[nrl..nrh][ncl..nch] that points to the matrix
- declared in the standard C manner as a[nrow][ncol], where nrow=nrh-nrl+1
- and ncol=nch-ncl+1. The routine should be called with the address
- &a[0][0] as the first argument. */
- {
- long i,j,nrow=nrh-nrl+1,ncol=nch-ncl+1;
- float **m;
- /* allocate pointers to rows */
- m=(float **) malloc((size_t) ((nrow+NR_END)*sizeof(float*)));
- if (!m) nrerror("allocation failure in convert_matrix()");
- m += NR_END;
- m -= nrl;
- /* set pointers to rows */
- m[nrl]=a-ncl;
- for(i=1,j=nrl+1;i<nrow;i++,j++) m[j]=m[j-1]+ncol;
- /* return pointer to array of pointers to rows */
- return m;
- }
- float ***f3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh)
- /* allocate a float 3tensor with range t[nrl..nrh][ncl..nch][ndl..ndh] */
- {
- long i,j,nrow=nrh-nrl+1,ncol=nch-ncl+1,ndep=ndh-ndl+1;
- float ***t;
- /* allocate pointers to pointers to rows */
- t=(float ***) malloc((size_t)((nrow+NR_END)*sizeof(float**)));
- if (!t) nrerror("allocation failure 1 in f3tensor()");
- t += NR_END;
- t -= nrl;
- /* allocate pointers to rows and set pointers to them */
- t[nrl]=(float **) malloc((size_t)((nrow*ncol+NR_END)*sizeof(float*)));
- if (!t[nrl]) nrerror("allocation failure 2 in f3tensor()");
- t[nrl] += NR_END;
- t[nrl] -= ncl;
- /* allocate rows and set pointers to them */
- t[nrl][ncl]=(float *) malloc((size_t)((nrow*ncol*ndep+NR_END)*sizeof(float)));
- if (!t[nrl][ncl]) nrerror("allocation failure 3 in f3tensor()");
- t[nrl][ncl] += NR_END;
- t[nrl][ncl] -= ndl;
- for(j=ncl+1;j<=nch;j++) t[nrl][j]=t[nrl][j-1]+ndep;
- for(i=nrl+1;i<=nrh;i++) {
- t[i]=t[i-1]+ncol;
- t[i][ncl]=t[i-1][ncl]+ncol*ndep;
- for(j=ncl+1;j<=nch;j++) t[i][j]=t[i][j-1]+ndep;
- }
- /* return pointer to array of pointers to rows */
- return t;
- }
- void free_vector(float *v, long nl, long nh)
- /* free a float vector allocated with vector() */
- {
- free((FREE_ARG) (v+nl-NR_END));
- }
- void free_ivector(int *v, long nl, long nh)
- /* free an int vector allocated with ivector() */
- {
- free((FREE_ARG) (v+nl-NR_END));
- }
- void free_cvector(unsigned char *v, long nl, long nh)
- /* free an unsigned char vector allocated with cvector() */
- {
- free((FREE_ARG) (v+nl-NR_END));
- }
- void free_lvector(unsigned long *v, long nl, long nh)
- /* free an unsigned long vector allocated with lvector() */
- {
- free((FREE_ARG) (v+nl-NR_END));
- }
- void free_dvector(float *v, long nl, long nh)
- /* free a float vector allocated with dvector() */
- {
- free((FREE_ARG) (v+nl-NR_END));
- }
- void free_matrix(float **m, long nrl, long nrh, long ncl, long nch)
- /* free a float matrix allocated by matrix() */
- {
- free((FREE_ARG) (m[nrl]+ncl-NR_END));
- free((FREE_ARG) (m+nrl-NR_END));
- }
- void free_dmatrix(float **m, long nrl, long nrh, long ncl, long nch)
- /* free a float matrix allocated by dmatrix() */
- {
- free((FREE_ARG) (m[nrl]+ncl-NR_END));
- free((FREE_ARG) (m+nrl-NR_END));
- }
- void free_imatrix(int **m, long nrl, long nrh, long ncl, long nch)
- /* free an int matrix allocated by imatrix() */
- {
- free((FREE_ARG) (m[nrl]+ncl-NR_END));
- free((FREE_ARG) (m+nrl-NR_END));
- }
- void free_submatrix(float **b, long nrl, long nrh, long ncl, long nch)
- /* free a submatrix allocated by submatrix() */
- {
- free((FREE_ARG) (b+nrl-NR_END));
- }
- void free_convert_matrix(float **b, long nrl, long nrh, long ncl, long nch)
- /* free a matrix allocated by convert_matrix() */
- {
- free((FREE_ARG) (b+nrl-NR_END));
- }
- void free_f3tensor(float ***t, long nrl, long nrh, long ncl, long nch,
- long ndl, long ndh)
- /* free a float f3tensor allocated by f3tensor() */
- {
- free((FREE_ARG) (t[nrl][ncl]+ndl-NR_END));
- free((FREE_ARG) (t[nrl]+ncl-NR_END));
- free((FREE_ARG) (t+nrl-NR_END));
- }