Can you use template with struct?

If I have this,

Code:

---

struct BinTreeNode
{
    int data;
    BinTreeNode * left;
    BinTreeNode * right;
};

---

could I make it in a template?

I tried doing this,

Code:

---

template <struct T>
struct BinTreeNode
{
    T data;
    BinTreeNode * left;
    BinTreeNode * right;
};

---

but it gives me errors.

No, you can not use the struct keyword there.

However, the class keyword doesn't mean that T can only be a class. It can be any type. The synonym for class is typename in this context.

I actually prefer to use typename in all cases to avoid ambiguity. I've encountered a few situations where the class keyword actually caused problems, although I can't remember the specifics at the moment.

I've read somewhere that typename actually has some advantages and even if it didn't I would still use it because it's just so much clearer.