Thread: swap()

I have a map that's indexed with integers as the keys. I can't find anything on this function except for an example that doesn't even use maps. Can anybody help me out?

All I have so far is

swap(3);

But I get the following error: no matching function for call to`swap(int)'

It doesn't work, i get the error:

invalid suffix "swap" on floating constant

Originally Posted by divineleft

It doesn't work, i get the error:

invalid suffix "swap" on floating constant

just think about it:
it's called 'swap' so in any way two parties have to be involved to swap.
it shurely is possible in some context to call swap with only one argument ( e.g. call an iterator's swap member with another iterator as argument ) but you shurely cannot call swap with a literal.
You have to provide some context to get a proper answer.
Kurt

Code:

    inv_iter = inventory.find(number);
    for(inv_iter; inv_iter!=inventory.end(); inv_iter++)
    {
              2.swap(3);
    }

the 2 and 3 are just temporary

oh

Well for my game, the users inventory uses maps indexed by numbers (0,1,2,3) which are all assigned to the item when they are added to the inventory. So when the user inputs the number, it is associated with an item and that item is removed. I want it so the map that the user inputted is swapped with the next number in the map until it reaches the end of the map. Once it is at the end It can be removed. This way when the item is removed the inventory doesn't display:

1 - (item)
3 - (item)
4 - (item)

It should be:

1 - (item)
2 - (item) (swapped)
3 - (item) (swapped)
4 - (item) (deleted)

Never mind, I just had to use " swap(inventory[2], inventory[3]);"

delete/lock/ban/prob me

Wouldn't it be easier to use a plain old vector, and display the contents with the index number. If the user selects a number, just erase the element at that index.

I thought of using that at first but I was told to use maps in my other thread. I guess it kind of makes sense since the 1,2,3,4's are always with the data.