AuxMemory.c File Reference

Memory allocation and deallocation subroutines. More...

#include "fasp.h"
#include "fasp_functs.h"

Go to the source code of this file.

Functions
void *	fasp_mem_calloc (const unsigned int size, const unsigned int type)
	Allocate, initiate, and check memory. More...
void *	fasp_mem_realloc (void *oldmem, const LONGLONG tsize)
	Reallocate, initiate, and check memory. More...
void	fasp_mem_free (void *mem)
	Free up previous allocated memory body and set pointer to NULL. More...
void	fasp_mem_usage (void)
	Show total allocated memory currently. More...
SHORT	fasp_mem_iludata_check (const ILU_data *iludata)
	Check wether a ILU_data has enough work space. More...

Variables
const int	Million = 1048576

Detailed Description

Memory allocation and deallocation subroutines.

Note

This file contains Level-0 (Aux) functions.

---

Copyright (C) 2009–Present by the FASP team. All rights reserved.

Released under the terms of the GNU Lesser General Public License 3.0 or later.

Definition in file AuxMemory.c.

Function Documentation

fasp_mem_calloc()

void * fasp_mem_calloc	(	const unsigned int	size,
		const unsigned int	type
	)

Allocate, initiate, and check memory.

Parameters

size	Number of memory blocks
type	Size of memory blocks

Returns

Void pointer to the allocated memory

Author

Chensong Zhang

Date

2010/08/12

Modified by Chensong Zhang on 07/30/2013: print warnings if failed

Definition at line 65 of file AuxMemory.c.

fasp_mem_free()

void fasp_mem_free

(

void *

mem

)

Free up previous allocated memory body and set pointer to NULL.

Parameters

mem	Pointer to the memory body need to be freed

Author

Chensong Zhang

Date

2010/12/24

Modified on 2018/01/10 by Chensong: Add output when mem is NULL

Definition at line 152 of file AuxMemory.c.

fasp_mem_iludata_check()

SHORT fasp_mem_iludata_check

(

const ILU_data *

iludata

)

Check wether a ILU_data has enough work space.

Parameters

iludata

Pointer to be checked

Returns

FASP_SUCCESS if success, else ERROR (negative value)

Author

Xiaozhe Hu, Chensong Zhang

Date

11/27/09

Definition at line 203 of file AuxMemory.c.

fasp_mem_realloc()

void * fasp_mem_realloc	(	void *	oldmem,
		const LONGLONG	tsize
	)

Reallocate, initiate, and check memory.

Parameters

oldmem	Pointer to the existing mem block
tsize	Size of memory blocks

Returns

Void pointer to the reallocated memory

Author

Chensong Zhang

Date

2010/08/12

Modified by Chensong Zhang on 07/30/2013: print error if failed

Definition at line 113 of file AuxMemory.c.

fasp_mem_usage()

void fasp_mem_usage

(

void

)

Show total allocated memory currently.

Author

Chensong Zhang

Date

2010/08/12

Definition at line 183 of file AuxMemory.c.

Variable Documentation

Million

const int Million = 1048576

1M = 1024*1024

Definition at line 44 of file AuxMemory.c.