GRASS GIS 7 Programmer's Manual  7.5.svn(2018)-r72636
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dalloc.c File Reference

Matrix memory management functions. More...

#include <stdlib.h>
#include <grass/gis.h>
Include dependency graph for dalloc.c:

Go to the source code of this file.

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

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]rowsnumber of rows in matrix
[in]colsnumber of columns in matrix
Returns
float **

Definition at line 104 of file dalloc.c.

float * G_alloc_fvector ( size_t  n)

Floating point vector memory allocation.

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

Parameters
[in]nsize of vector to allocate
Returns
float *

Definition at line 85 of file dalloc.c.

double ** G_alloc_matrix ( int  rows,
int  cols 
)

Matrix memory allocation.

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

Parameters
[in]rowsnumber of rows in matrix
[in]colsnumber of columns in matrix
Returns
double **

Definition at line 60 of file dalloc.c.

Referenced by G_math_Asp_to_A(), G_math_Asp_to_sband_matrix(), G_math_cholesky_sband_invert(), G_math_matrix_to_sband_matrix(), G_math_sband_matrix_to_matrix(), G_math_solver_cholesky_sband(), G_math_solver_cholesky_sband_invert(), IL_interp_segments_2d(), IL_interp_segments_2d_parallel(), IL_resample_interp_segments_2d(), and N_alloc_les_param().

double * G_alloc_vector ( size_t  n)

Vector matrix memory allocation.

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

Parameters
[in]nsize of vector to allocate
Returns
double *

Definition at line 41 of file dalloc.c.

Referenced by G_ludcmp(), G_math_cholesky_sband_invert(), G_math_solver_cholesky_sband_invert(), G_math_solver_gs(), G_math_solver_jacobi(), G_math_solver_lu(), G_math_solver_sparse_gs(), G_math_solver_sparse_jacobi(), IL_interp_segments_2d(), IL_interp_segments_2d_parallel(), IL_matrix_create(), and IL_resample_interp_segments_2d().

void G_free_fmatrix ( float **  m)

Floating point matrix memory deallocation.

Deallocate a matrix of floats.

Parameters
[in,out]mmatrix to free
Returns
void

Definition at line 190 of file dalloc.c.

References G_free(), and NULL.

void G_free_fvector ( float *  v)

Vector memory deallocation.

Deallocate a vector (array) of floats.

Parameters
[in,out]vvector to free
Returns
void

Definition at line 149 of file dalloc.c.

References G_free(), and NULL.

void G_free_matrix ( double **  m)

Matrix memory deallocation.

Deallocate a matrix of doubles.

Parameters
[in,out]mmatrix to free
Returns
void

Definition at line 169 of file dalloc.c.

References G_free(), and NULL.

Referenced by G_math_cholesky_sband_invert(), G_math_solver_cholesky_sband(), G_math_solver_cholesky_sband_invert(), and N_free_les().

void G_free_vector ( double *  v)

Vector memory deallocation.

Deallocate a vector (array) of doubles.

Parameters
[in,out]vvector to free
Returns
void

Definition at line 129 of file dalloc.c.

References G_free(), and NULL.

Referenced by G_ludcmp(), G_math_cholesky_sband_invert(), and G_math_solver_cholesky_sband_invert().