C++ template class template function question

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I want to add a member function Y that takes S as a template parameter in template class B.

template<typename t="">
class B {
public:
   template<typename s="">
   static void X(S & x);
}
</typename></typename>

If I try to define

template<>
template<typename s="">
void B<_variant_t>::X(S & x) {
}
</typename>

or

XML

<pre>
template<typename t="">
template<typename S>
void B<t>::X(S & x) {
}
</pre></t></typename>

I get an error

Posted 22-Jun-11 5:51am

Updated 22-Jun-11 9:50am

v5

1 solution

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-06-22T06:05:00

What you are looking for is template function, not template class. More exactly, this is irrelevant if the declaring class template or not. You function can stay along or be a member of the class; and this class can be a template class or not, does not matter.

Review some samples on how to write a template function:
http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8a.doc%2Flanguage%2Fref%2Ffunction_templates.htm[^].

It should be enough, but you can find tons of info if you Google for it.

—SA