为何出现下面错误。大家帮忙

[pearlriver]

一个程序编译能通过，在运行调试时
出现
“user break point called from code at 0x77fa018c

程序出现的汇编代吗为。
77FA0186 call 77F843EB
77FA018B ret
77FA018C int 3
77FA018D ret
77FA018E int 3
77FA018F ret

把主程序中对子程序的调用除掉，就无错，
主程序调用子程序的 printdata()函数
void SendDataBuffer::Printdata()
{


//算法分析 ：遍历在phead和ptail之间的部分
if(pHead >= pTail)
{
for (int i = pTail; i< pHead; i++)
{
MESSAGE_STRU1 * messagemiddle ;
messagemiddle = new MESSAGE_STRU1;
messagemiddle = (MESSAGE_STRU1*)MsgList[i];
TRACE("sdfsaf%i\n",messagemiddle->a;
delete messagemiddle;
}

}


}
程序的含义是输出链表，首指针到尾指针之间的结构数据的a值

[zhujiang113]

指针赋值 多种方式自己看

[hdqqq]

up

[pearlriver]

好像是因为 new 和 delete 指针的缘故，
谁能告诉我为什么呢

[leonfu]

1. i is a pointer and you use the pointer as the MsgList array's subscript, it seems very dangerous!!
2. you use messagemiddle to point to the MsgList[i], so you don't need to new the mesasgemiddle, you can just delete the sentence "messagemiddle = new MESSAGE_STRU1;"

[pearlriver]

why dangerous, who can tell me!