Re: [Boost-users] [Enable-if] Selectively instantiating methods.

2011/9/23 Robert Jones

Hi All

This doesn't work.

template<typename T> struct S { typename disable_if::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.