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how to convert iterator to an object pointer

Posted on 2013-11-30
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Medium Priority
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Last Modified: 2013-12-01
class objectClass
{
    string name;
    int id;
};

objectClass object;

std::vector <object> objectList;

map <name, objectClass *> objectMap


for (auto iter = objectList.begin(); iter < objectList.end(); iter++)
{
       // ??? how do I assign the object name and object pointer
       // from the list to the objectMap

      objectMap [(*iter).name] = &(*iter);  // Is this right?
}
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Question by:tommym121
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2 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 2000 total points
ID: 39688242
objectMap [(*iter).name] = &(*iter);  // Is this right?

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Yes, that would be correct way that keeps all 'misunderstandings' out and is on the safe side. Since the above snippet is full of typos, here's a complete one that you can use to verify that it compiles:

#include <vector>
#include <map>
#include <string>
using namespace std;

class objectClass
{
public:
    string name;
    int id;
};

void main ()
{
objectClass object;

std::vector <objectClass> objectList;

map <string, objectClass *> objectMap;


for (std::vector <objectClass>::iterator iter = objectList.begin(); iter < objectList.end(); iter++)
{
       // ??? how do I assign the object name and object pointer
       // from the list to the objectMap

      objectMap [(*iter).name] = &(*iter);  // Is this right?

} 

}

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Author Closing Comment

by:tommym121
ID: 39688695
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