[boost] Re: move_ptr

From: Howard Hinnant (hinnant_at_[hidden])
Date: 2004-01-24 20:31:23

On Jan 24, 2004, at 7:20 PM, Daryle Walker wrote:

> Can you have both?  The built-in signed integral types would go to the
> "ptrdiff_t" version and the built-in unsigned integral types would go 
> to the
> "size_t" version.  Or do the conversion rules produce an ambiguity 
> error
> instead?

If you simply define both, you're setting yourself up for an ambiguity 
error.  For example if:

ptrdiff_t == long
size_t    == unsigned long

then an int argument might be able to convert to either with equal ease.

-Howard