Static Member Initialization of class template

Question

Please find the code below:

#include <iostream> using namespace std; template<typename T> class A { static A* self; }; template<typename T> A* A<T>::self = NULL; int main() { return 0; }

I am facing a compilation problem while initialising the static pointer. Even though so many links has said the same way (the way i initialised) but still the problem resist. Below is the compilation error.

"expected constructor, destructor, or type conversion before '*' token"

interjay · Accepted Answer · 2013-10-08 16:48:27Z

A is a class template, so you need to specify the template parameter when defining the pointer to it.

Instead of:

template<typename T> A* A<T>::self = NULL;

it should be:

template<typename T> A<T>* A<T>::self = NULL;

Within the class body, specifying the template parameter is optional, so you can write A* there and it will be treated the same as A<T> *.

djs · Accepted Answer · 2013-10-08 16:49:17Z

0

try:

template<typename T> A<T>* A<T>::self = NULL;

answered Oct 8, 2013 at 16:49

djs

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