Hello,
Is there any way of specializing a templated function on a type which
is itself templated? Here's the simplest example of the problem I can
think of. Say I have written an implementation of the identity function
as follows,
template <class T> T identity(T x) { return x; }
and for some reason I want to specialize this function for the
following templated type, so that instead of returning the entire
structure, the identity function only returns the single value within
the structure.
template <class T>
struct Foo {
T foo;
};
Is there any way I can do something like the following?
template <>
template <class FooT> // Parameter for Foo; not legal C++ code.
Foo<T> identity(T x) { return x.foo; }
Any help would be appreciated.
Thanks,
Alex
