Re: [boost] [test] missing friend declaration in class fixed_mapping?

From: Jonathan Wakely (cow_at_[hidden])
Date: 2005-06-16 05:26:52

On Thu, Jun 16, 2005 at 11:43:08AM +0200, Markus Sch?pflin wrote:

> Hello,
> 
> I'm not really sure but isn't there a friend declaration missing in the 
> fixed_mapping class?
> 
> Given the following code:
> 
> template< ... >
> class fixed_mapping
> {
>      typedef std::pair<Key,Value> elem_type;
>      ...
>      struct p1 : public std::binary_function<elem_type,Key,bool>
>      {
>          bool operator()( elem_type const& x, Key const& y ) const
>          { return Compare()( x.first, y ); }
>      };
>      ...
> };
> 
> doesn't this require p1 to be a friend of fixed mapping to be able to 
> access elem_type in it's operator()?

Strictly, yes.  But many compilers implement the resolution to DR45
already:
http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#45

jon