CRT detected that the application wrote to memory after end of heap buffer
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CRT detected that the application wrote to memory after end of heap buffer
点击打开链接 http://blog.csdn.net/wu_lai_314/article/details/8241697
今天在做检测线索二叉树与其他算法的时间复杂度时候遇到了这个问题,在网络上查阅了很多资料后,解决了这个问题,现在将这些资料及感悟整理如下,以来方便网友查阅,二来也作为自己的笔记.
点击打开链接 http://blog.csdn.net/wu_lai_314/article/details/8241697
CRT detected that the application wrote to memory after end of heap buffer
多是中间对其进行了一些操作,在程序结束处,释放内存的时候,引起错误:
HEAP CORRUPTION DETECTED:after Normal block(#***) at 0x****.CRT detected that application wrote memory after end of heap buffer.
错误原因:
以对内在操作的过程中,所写的地址超出了,所分配内在的边界
memcpy的时候, copy的大小超出了目标数组的大小
有个建议是:
1、内存申请多少释放多少,释放掉你申请过的内存,不要乱释放;
2、不能释放已经释放的内存;
网友还有一个建议是:
“增大内存开辟空间,new时多加1或者更大,这样就不会导致内存释放时,越界!
比如 int* p = new int[6];
for(int i=0;i<5;i++)
p[i]=i;
delete []p;
这样子实际用了5个,就会成功释放!!!”
以下小部分画线内是另一个网友的笔记:
------------------------------------------------------------------------------------------------------------------------------------------------------------------
ans = new int[size_a+size_b]; // 动态分配数组空间
delete [] ans;
一把delete [] ans;删掉程序就不弹出错误,这是为什么呢??
错误原因:
因为对内存的操作越界了,超出所分配的内存的边界。
解决:
增大分配的内存!
e.g.
ans = new int[size_a+size_b +1 ];
或者加到自己适宜的大小,问题即可解决...
总结:
对内存的操作要细之又细,new完后要delete,操作时不要越界(包括向前越或向后越).......
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------下面是我的错误代码:
- bool Insert(int i,T x){
- if(last==maxSize-1) return false;
- if(i<0 || i>last+1) return false;
- data[last++]=x;
- // _ASSERTE( _CrtCheckMemory( ) );
改正后为:
- bool Insert(int i,T x){
- if(last==maxSize-1) return false;
- if(i<0 || i>last+1) return false;
- data[++last]=x;
- // _ASSERTE( _CrtCheckMemory( ) );
只有一行代码: _ASSERTE( _CrtCheckMemory( ) );
相当好用。。。
注:欢迎各位大牛指导教育!
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点击打开链接 http://blog.csdn.net/wu_lai_314/article/details/8241697
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