dalloc.c File Reference

Matrix memory management functions. More...

#include <stdlib.h>
#include <grass/gis.h>

Include dependency graph for dalloc.c:

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Functions
double *	G_alloc_vector (size_t n)
	Vector matrix memory allocation. More...
double **	G_alloc_matrix (int rows, int cols)
	Matrix memory allocation. More...
float *	G_alloc_fvector (size_t n)
	Floating point vector memory allocation. More...
float **	G_alloc_fmatrix (int rows, int cols)
	Floating point matrix memory allocation. More...
void	G_free_vector (double *v)
	Vector memory deallocation. More...
void	G_free_fvector (float *v)
	Vector memory deallocation. More...
void	G_free_matrix (double **m)
	Matrix memory deallocation. More...
void	G_free_fmatrix (float **m)
	Floating point matrix memory deallocation. More...

Detailed Description

Matrix memory management functions.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Author

GRASS GIS Development Team

Date

2004-2006

Definition in file dalloc.c.

Function Documentation

G_alloc_fmatrix()

float** G_alloc_fmatrix	(	int	rows,
		int	cols
	)

Floating point matrix memory allocation.

Allocate a matrix of rows by cols floats initialized to zero.

Parameters

[in]	rows	number of rows in matrix
[in]	cols	number of columns in matrix

Returns

float **

Definition at line 99 of file dalloc.c.

References G_calloc.

G_alloc_fvector()

float* G_alloc_fvector

(

size_t

n

)

Floating point vector memory allocation.

Allocate a vector (array) of n floats initialized to zero.

Parameters

[in]

n

size of vector to allocate

Returns

float *

Definition at line 81 of file dalloc.c.

References G_calloc.

G_alloc_matrix()

double** G_alloc_matrix	(	int	rows,
		int	cols
	)

Matrix memory allocation.

Allocate a matrix of rows by cols doubles initialized to zero.

Parameters

[in]	rows	number of rows in matrix
[in]	cols	number of columns in matrix

Returns

double **

Definition at line 57 of file dalloc.c.

References G_calloc.

G_alloc_vector()

double* G_alloc_vector

(

size_t

n

)

Vector matrix memory allocation.

Allocate a vector (array) of n doubles initialized to zero.

Parameters

[in]

n

size of vector to allocate

Returns

double *

Definition at line 39 of file dalloc.c.

References G_calloc.

Referenced by G_math_solver_sparse_gs(), and G_math_solver_sparse_jacobi().

G_free_fmatrix()

void G_free_fmatrix

(

float **

m

)

Floating point matrix memory deallocation.

Deallocate a matrix of floats.

Parameters

[in,out]

m

matrix to free

Returns

void

Definition at line 181 of file dalloc.c.

References G_free(), and NULL.

G_free_fvector()

void G_free_fvector

(

float *

v

)

Vector memory deallocation.

Deallocate a vector (array) of floats.

Parameters

[in,out]

v

vector to free

Returns

void

Definition at line 142 of file dalloc.c.

References G_free(), and NULL.

G_free_matrix()

void G_free_matrix

(

double **

m

)

Matrix memory deallocation.

Deallocate a matrix of doubles.

Parameters

[in,out]

m

matrix to free

Returns

void

Definition at line 161 of file dalloc.c.

References G_free(), and NULL.

Referenced by N_free_les().

G_free_vector()

void G_free_vector

(

double *

v

)

Vector memory deallocation.

Deallocate a vector (array) of doubles.

Parameters

[in,out]

v

vector to free

Returns

void

Definition at line 123 of file dalloc.c.

References G_free(), and NULL.