[boost] Re: So much for "poor man's partial template specialization" :(

From: John Maddock (John_Maddock_at_[hidden])
Date: 2000-10-28 05:37:36

Bill,

>I guess I'm now a tad confused about the utility of call_traits.  I 
>can see how it would help with template classes in some cases, but is 
>there another way to do what was being attempted here with a template 
>function?

One way is to use a thin wrapper approach:

template <class T>
void foo_imp(call_traits<T>::param_type p)
{
/*details*/
}

template <class T>
void foo(const T& p)
{
   foo_imp<T>(p);
}

This does not solve all the potential problems, but it can help where
parameter p is best passed by value, note that the call to foo will get
optimised away, it's just there to perform template argument deduction.

- John.