From: calias DOT bbs AT cszone DOT twbbs DOT org (如此這般)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: pointer & structure
Date: 24 Dec 1999 07:40:20 GMT
Organization: 程式設計樂園(CSZone)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

: Without looking to much further, You are assignement does not look right
: unless, you meant
: LINEPtr *clp, *FirstPtr;
:              ^^^
ya~I mean it..
Here is a example I've write that can run well...


ListElement *aLE;
ListElement *FIrstLE=aLE;

for (int i=0;i<10;i++)
for( int j=0;j<10;j++){
   aLE->next=new ListElement;
   aLE=aLE->next;
   aLE->aRect.left=i;aLE->aRect.right=j;
   }
//then connect it
aLE->next=FirstLE->next;

//read data
do {
aLE=aLE->next;
cout <<"left:"<<aLE->aRect.left<<" right:"<<aLE->aRect.right<<endl;
}while(aLE->next!=FirstLE->next);

//free the memory
do {
aLE=aLE->next;
delete aLE;
}while(aLE->next!=FirstLE->next);


//here it can free well that while i delete aLE
//the aLE->next will not become something else...

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※ Origin: 程式設計樂園 ◆ From: sowhat.m1.ntu.edu.tw

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※ Origin: 程式設計樂園 ◆ From: sowhat.m1.ntu.edu.tw