2011/9/23 Robert Jones <robertgbjones@gmail.com>
Hi All

This doesn't work.

template<typename T> struct S
    typename disable_if<is_const<T>, int>::type mutating_method();

I understand why not, although only after the compiler threw it out, but obviously (in hindsight),
the method itself is not a template, so can't be selectively instantiated.

The question is whether and how I can achieve the effect I'm after, ie., that the method
is not present if the struct is instantiated with a const type?

You'll need to specialize S or do something to the similar effect (e.g., have two base classes and inherit from one of them depending on the template argument). 

Roman Perepelitsa.