template problem

[myoni]

Hi

I've template class that may get string and integer,
if I'm using it with int it's fine but if I use it with string I get an error,
because string need to be "" and not NULL.
what can I do?

this is the code:

template <class K>
Item<K>::Item()
{
	key=NULL;
}

[coder777]

Do it like so:

template <class K>
Item<K>::Item()
{
	key=K();
}

[myoni]

thank you, but It's good to string but error for int

[coder777]

Nope, it's good for both. Did you compile it?

If you get an error, get a more recent version of your compiler.

[myoni]

my mistake
It's fine
thank you

[Peter87]

It's better to initialize key in the constructor initialization list.

template <class K>
Item<K>::Item()
:	key()
{
}