[boost] Re: [hash] Built in arrays

From: Daniel James (daniel_at_[hidden])
Date: 2005-04-10 14:18:10

Peter Dimov wrote:

> Or perhaps just switching to:
> 
>    template<class T> size_t hash_value( T * const & p );
> 
> ?

How embarrassing....I hadn't thought of that. I was trying every way I 
could think of to declare the array function. I might not be able to get 
it to work for older compilers though. But that's not such a big deal. 
I'll see how it goes.

I still think it may be a good idea to change hash_combine's 
specification (but not necessarily it's implementation) to be in terms 
of boost::hash (or std::hash). But that's up to you.

Thorsten wrote:

> Does
> 
> template< class T >
> void hash( size_t&, const T* );
> 
> template< class T, unsigned N >
> void hash( size_t&, const T (&array)[N] );
> 
> not work?

It depends on which compiler you ask, intel linux (EDG based) says no. 
(Sorry, for not replying to your mail directly, but I seem to have lost 
it, which is a bit odd since I'm using gmane).

Daniel