Calling template methods in template classes

Question

I\'m attempting to figure out why some code that I have won\'t compile and I done a fair bit of reduction an anonymizing to end up with this example:

#define NUL         


        

Answer 1

Need to add the template keyword:

return ap->template amem<b>();

Please read Where and why do I have to put the “template” and “typename” keywords? for an in-depth explanation.

Answer 2

In the context where you call

return ap->amem<b>();

the name amem is a dependent name: If such a beast indeed refers to a member function template, you need to say so by adding the keyword template:

return ap->template amem<b>();

BTW, note that you shall not define NULL! If you need a definition of the abomination you should include, e.g., cstddef. Best you use just 0 or nullptr when using C++ 2011.