nrutil.c

/*
**      File:   nrutil.c
**      Purpose: Memory allocation routines borrowed from the
**		book "Numerical Recipes" by Press, Flannery, Teukolsky,
**		and Vetterling.
**              state sequence and probablity of observing a sequence
**              given the model.
**      Organization: University of Maryland
**
**      $Id: nrutil.c,v 1.2 1998/02/19 16:31:35 kanungo Exp kanungo $
*/

#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
static char rcsid[] = "$Id: nrutil.c,v 1.2 1998/02/19 16:31:35 kanungo Exp kanungo $";


void nrerror(const char *error_text)
{

	fprintf(stderr,"Numerical Recipes run-time error...\n");
	fprintf(stderr,"%s\n",error_text);
	fprintf(stderr,"...now exiting to system...\n");
	exit(1);
}



float *Vector(int nl,int nh)
{
	float *v;

	v=(float *)calloc((unsigned) (nh-nl+1),sizeof(float));
	if (!v) nrerror("allocation failure in Vector()");
	return v-nl;
}

int *ivector(int nl,int nh)
{
	int *v;

	v=(int *)calloc((unsigned) (nh-nl+1),sizeof(int));
	if (!v) nrerror("allocation failure in ivector()");
	return v-nl;
}

double *dvector(int nl,int nh)
{
	double *v;

	v=(double *)calloc((unsigned) (nh-nl+1),sizeof(double));
	if (!v) nrerror("allocation failure in dvector()");
	return v-nl;
}



float **matrix(int nrl,int nrh,int ncl,int nch)
{
	int i;
	float **m;

	m=(float **) calloc((unsigned) (nrh-nrl+1),sizeof(float*));
	if (!m) nrerror("allocation failure 1 in matrix()");
	m -= nrl;

	for(i=nrl;i<=nrh;i++) {
		m[i]=(float *) calloc((unsigned) (nch-ncl+1),sizeof(float));
		if (!m[i]) nrerror("allocation failure 2 in matrix()");
		m[i] -= ncl;


	}
	return m;
}

double **dmatrix(int nrl,int nrh,int ncl,int nch)
{
	int i;
	double **m;

	m=(double **) calloc((unsigned) (nrh-nrl+1),sizeof(double*));
	if (!m) nrerror("allocation failure 1 in dmatrix()");
	m -= nrl;

	for(i=nrl;i<=nrh;i++) {
		m[i]=(double *) calloc((unsigned) (nch-ncl+1),sizeof(double));
		if (!m[i]) nrerror("allocation failure 2 in dmatrix()");
		m[i] -= ncl;
	//printf("m[i]=%f ",m[i]);
	}
	return m;
}

int **imatrix(int nrl,int nrh,int ncl,int nch)
{
	int i,**m;

	m=(int **)calloc((unsigned) (nrh-nrl+1),sizeof(int*));
	if (!m) nrerror("allocation failure 1 in imatrix()");
	m -= nrl;

	for(i=nrl;i<=nrh;i++) {
		m[i]=(int *)calloc((unsigned) (nch-ncl+1),sizeof(int));
		if (!m[i]) nrerror("allocation failure 2 in imatrix()");
		m[i] -= ncl;
	}
	return m;
}



float **submatrix(float** a,int oldrl,int oldrh,int oldcl,int oldch,int newrl,int newcl)
{
	int i,j;
	float **m;

	m=(float **) calloc((unsigned) (oldrh-oldrl+1),sizeof(float*));
	if (!m) nrerror("allocation failure in submatrix()");
	m -= newrl;

	for(i=oldrl,j=newrl;i<=oldrh;i++,j++) m[j]=a[i]+oldcl-newcl;

	return m;
}



void free_vector(float *v,int nl,int nh)
{
	free((char*) (v+nl));
}

void free_ivector(int *v,int nl,int nh)
{
	free((char*) (v+nl));
}

void free_dvector(double *v,int nl,int nh)
{
	free((char*) (v+nl));
}



void free_matrix(float** m,int nrl,int nrh,int ncl,int nch)
{
	int i;

	for(i=nrh;i>=nrl;i--) free((char*) (m[i]+ncl));
	free((char*) (m+nrl));
}

void free_dmatrix(double **m,int nrl,int nrh,int ncl,int nch)
{
	int i;

	for(i=nrh;i>=nrl;i--) free((char*) (m[i]+ncl));
	free((char*) (m+nrl));
}

void free_imatrix(int **m,int nrl,int nrh,int ncl,int nch)
{
	int i;

	for(i=nrh;i>=nrl;i--) free((char*) (m[i]+ncl));
	free((char*) (m+nrl));
}



void free_submatrix(float **b,int nrl,int nrh,int ncl,int nch)
{
	free((char*) (b+nrl));
}



float **convert_matrix(float *a,int nrl,int nrh,int ncl,int nch)
{
	int i,j,nrow,ncol;
	float **m;

	nrow=nrh-nrl+1;
	ncol=nch-ncl+1;
	m = (float **) calloc((unsigned) (nrow),sizeof(float*));
	if (!m) nrerror("allocation failure in convert_matrix()");
	m -= nrl;
	for(i=0,j=nrl;i<=nrow-1;i++,j++) m[j]=a+ncol*i-ncl;
	return m;
}



void free_convert_matrix(float **b,int nrl,int nrh,int ncl,int nch)
{
	free((char*) (b+nrl));
}