资源简介
LDPC编解码的MATLAB仿真实现, 包括文档及MATLAB代码,需要的请下载,可以参考。
代码片段和文件信息
/* ALLOC.C - Routine to allocate memory and complain if it doesn‘t work. */
/* Copyright (c) 1996 by Radford M. Neal
*
* Permission is granted for anyone to copy use or modify this program
* for purposes of research or education provided this copyright notice
* is retained and note is made of any changes that have been made.
*
* This program is distributed without any warranty express or implied.
* As this program was written for research purposes only it has not been
* tested to the degree that would be advisable in any important application.
* All use of this program is entirely at the user‘s own risk.
*/
#include
#include
#include “alloc.h“
/* ALLOCATE SPACE AND CHECK FOR ERROR. Calls ‘calloc‘ to allocate space
and then displays an error message and exits if the space couldn‘t be
found. */
void *chk_alloc
( unsigned n /* Number of elements */
unsigned size /* Size of each element */
)
{
void *p;
p = calloc(nsize);
if (p==0)
{ fprintf(stderr“Ran out of memory (while trying to allocate %d bytes)\n“
n*size);
exit(1);
}
return p;
}
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