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removing a node from C++ list

Posted on 2000-05-01
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Last Modified: 2010-04-02
Hi !
following is some code. the problem is with the remove() function coded below.
i want to remove the nodes found in the list which is pretty clear from the remove function, but removal is not working....
kindly help...

struct WinTable      {
      int id;
      HWND hNWnd;
};

typedef      list<WinTable> LT;

typedef list<WinTable>::iterator WI;

LT table;
//////////////////////////



void remove(int logicalID)
{
for(WI i=table.begin(); i!=table.end(); ++i)
{
if(i->id==logicalID)
    table.remove(i); //erroneous code
}
}



-Best regards
Sun307
0
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Question by:sun307
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3 Comments
 
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Accepted Solution

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nietod earned 200 total points
ID: 2765515
You want to use erase(), not remove().

continues.
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LVL 22

Expert Comment

by:nietod
ID: 2765517
list::remove() removes all elements that have are equal to the specified value.  i.e. it iterates through each item in the list and compares each item to the specified value, if they are the same, it deletes the item from the list.  (you could potentially be able to make the list::remove() function work for you by using an appropriate overloaded operator == function and a vey different algoritm in your remove() function.

list::erase() erases an element specified by an iterator, so this is the type of erasure/removal you are trying to do.

void remove(int logicalID)
{
   for(WI i=table.begin(); i!=table.end(); ++i)
   {
      if (i->id==logicalID)
        table.erase(i); //erroneous code
   }
}
0
 
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Author Comment

by:sun307
ID: 2768117
Thanx Nietod !!
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