Re: [boost] C++03 unique_ptr emulation

Subject: Re: [boost] C++03 unique_ptr emulation
From: Sebastian Redl (sebastian.redl_at_[hidden])
Date: 2009-01-08 03:13:56

On Wed, 7 Jan 2009 20:40:13 -0500, Howard Hinnant <hinnant_at_[hidden]>
wrote:
> 
> Noteworthy points:
> 
> *  3 of the tests currently fail for me (fail at compile time,  
> supposed to compile, run and pass).  These are all associated with the  
> converting constructor specified in [unique.ptr.single.ctor].  When  
> the source and target are of different type, this emulation demands  
> that the conversion be explicit, and refuses to compile on implicit  
> conversions:
> 
> unique_ptr<base> b(unique_ptr<derived>());  // ok
> 
> unique_ptr<base> b = unique_ptr<derived>();  // causes 3 compile time  
> failures under unique.ptr/unique.ptr.single/unique.ptr.single.ctor
> 
> I consider this not bad for an emulation.  And otherwise things look  
> pretty good.  I was able to get more working than I thought I would.
> 

This is consistent with the conversions I could not get to work in my Clang
smart pointers.

Sebastian