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#include "gis.h"
#include <stdlib.h>
/*!
* \brief memory allocation
*
* Allocate a
* vector (array) of <b>n</b> doubles initialized to zero.
*
* \param n
* \return double *
*/
double *G_alloc_vector(int n)
{
return (double *) G_calloc (n, sizeof(double));
}
/*!
* \brief memory allocation
*
* Allocate a matrix of <b>rows</b> by <b>cols</b> doubles initialized
* to zero.
*
* \param rows
* \param cols
* \return double **
*/
double **G_alloc_matrix( int rows,int cols)
{
double **m;
int i;
m = (double **) G_calloc (rows, sizeof(double *));
m[0] = (double *) G_calloc (rows*cols, sizeof(double));
for (i = 1; i < rows; i++)
m[i] = m[i-1] + cols;
return m;
}
/*!
* \brief memory allocation
*
* Allocate a
* vector (array) of <b>n</b> floats initialized to zero.
*
* \param n
* \return float *
*/
float *G_alloc_fvector(int n)
{
return (float *) G_calloc (n, sizeof(float));
}
/*!
* \brief memory allocation
*
* Allocate a matrix of <b>rows</b> by <b>cols</b> floats initialized
* to zero.
*
* \param rows
* \param cols
* \return float **
*/
float **G_alloc_fmatrix( int rows,int cols)
{
float **m;
int i;
m = (float **) G_calloc (rows, sizeof(float *));
m[0] = (float *) G_calloc (rows*cols, sizeof(float));
for (i = 1; i < rows; i++)
m[i] = m[i-1] + cols;
return m;
}
/*!
* \brief memory deallocation
*
* Deallocate a
* vector (array) of doubles or floats.
*
* \param v
* \return int
*/
int G_free_vector(double *v)
{
free (v);
return 0;
}
/*!
* \brief memory deallocation
*
* Deallocate
* a matrix of doubles.
*
* \param m
* \return int
*/
int G_free_matrix( double **m)
{
free (m[0]);
free (m);
return 0;
}
/*!
* \brief memory deallocation
*
* Deallocate
* a matrix of floats.
*
* \param m
* \return int
*/
int G_free_fmatrix(float **m)
{
free (m[0]);
free (m);
return 0;
}
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