Re: Boost threading library

From: williamkempf_at_[hidden]
Date: 2001-03-19 17:45:19

--- In boost_at_y..., "David Abrahams" <abrahams_at_m...> wrote:
> 
> ----- Original Message -----
> From: <williamkempf_at_h...>
> > >
> > > I think that all general comments of using traits can be applied
> > > here. For exmaple, using "mutex::lock" put a stronger 
requirement on
> > > mutex type.
> >
> > I'm probably being dense, but I don't see how.  Could you please
> > illustrate with some code?
> 
> For the same reason that we have iterator_traits. You can't arrange 
for
> built-in pointers to have type members (e.g. 
char*::iterator_category).
> Traits are non-intrusive (see
> http://www.boost.org/more/generic_programming.html#traits)

Ahh... I was being dense.  I can't think of a type that will result 
in the same issue here, but just because I can't doesn't mean it 
won't occur.  I'll look into this as soon as the implementations are 
up to snuff.  After all, this change will be non-intrusive to the 
interface.  Thanks for the ideas and the push to understanding why 
they'd be beneficial.

Bill Kempf