Re: how to specialization a template class which declare in a template class?
On 4??2??, ????11??13??, ChenA <ChenA.Inva...@gmail.com> wrote:
I use gcc in linux.
template<class T>
class A
{
public:
template<class N>
class B
{
};
};
template<>
template<class T>
class A<T>::B<int>
{
void test();
T t;
};
int main()
{
A<int>::B<int> b;
//b.test();
exit(0);
}
the complier said : in partial specialization didn't use template
parameter 'T'.
Why?
How to modify the code?
Thanks.
You can't specialize a nested class without specialize the enclosing
class.
So the code should be:
template<>
template<class T>
class A<int>::B {
....
};
or:
template<>
template<>
class A<char>::B<int> {
....
};
This is not what you want, but the standard just doesn't meet your
need.
you can refer to 14.7.3/18
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