<p>If I have a template function, for example like this:</p>

<pre><code>template&lt;typename T&gt;
void func(const std::vector&lt;T&gt;&amp; v)
</code></pre>

<p>Is there any way I can determine within the function whether T is a pointer, or would I have to use another template function for this, ie:</p>

<pre><code>template&lt;typename T&gt;
void func(const std::vector&lt;T*&gt;&amp; v)
</code></pre>

<p>Thanks</p>

Indeed, templates can do that, with partial template specialization:
```
```
template<typename T>
struct is_pointer { static const bool value = false; };

template<typename T>
struct is_pointer<T*> { static const bool value = true; };

template<typename T>
void func(const std::vector<T>& v) {
    std::cout << "is it a pointer? " << is_pointer<T>::value << std::endl;
}
```
```
If in the function you do things only valid to pointers, you better use the method of a separate function though, since the compiler type-checks the function as a whole.
You should, however, use boost for this, it includes that too:
http://www.boost.org/doc/libs/1_37_0/libs/type_traits/doc/html/boost_typetraits/reference/is_pointer.html