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template <int K>
class Wrap
{
// stuffs
};
What is wrong if I instantiate the template like Wrap < 5>4 > p;?
I get expected unqualified-id before numeric constant error. How to fix this?
That should be intuitively obvious just by looking at the statement: it’s confusing even for humans! The compiler has no way of coping with the double meaning of
>here: does it mean “greater than”? Does it mean “close the template argument list”? Turns out, it means both, and the compiler has no hint as to which meaning to apply where. Both are technically valid parses.