STL map ( no unique element )

[overule]

Hi there,

Are there any experts out there ?

I know STL map only allow unique key but how about its element ?
I want the element to be unique too. Is there an easy way to do it ?

I can compare every element in the map and make sure it's unique but i am posting here for a better way.

eg grade_list["john"] = 'A';

The 'A' is the element and i want it to be unique for all element in the map. There's a reason for what i am doing.

Please help.

cheers

[markkuk]

Create an additional std::set for the element values, then you can easily test if an element already exists.

[overule]

Can you show me any example (in code form)?
I dont get what you meant.

thanks

[overule]

I don't want to use additional structure. That's not the right way to use set anyway.

There must be a better way!

[overule]

It seems like i have to compare every element in the map.

so is this efficient enough ?

for(iter = mymap.begin(); iter != mymap.end(); iter++)
    {
        cout << endl;
        
        for(iter1 = mymap.begin(); iter1 != mymap.end(); iter1++)
        {
        	if(*iter != *iter1)
        	{
        		// if two elements are equal, then print out "Equal"
        		if()
        		cout << " iter: " << iter->second << " iter1: " << iter1->second << endl;
        	}
        }
  
    }

If not, please suggest a better solution.

thanks