Re: [boost] [smart_ptr/static_pointer_cast] Trying to make ADL useful in my boost libraries

From: David Abrahams (dave_at_[hidden])
Date: 2006-06-14 17:25:01

"Peter Dimov" <pdimov_at_[hidden]> writes:

> Ion Gaztañaga wrote:

>

>> This compiles fine with with VC 7.1. g++ fails with:

>> "no matching function for call to 'static_pointer_cast(dummy::smart_

>> ptr<int>)'"

>

> This means that g++ doesn't do ADL for static_pointer_cast<int>. 

Nor does any other compiler I know of, IIUC.

> There's an 

> issue about it by Gabriel Dos Reis:

>

> http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_active.html#485

>

> but it's still open and contains no further notes, so it isn't clear whether 

> g++ is right or not. 

Well, if foo<bar>(...) starts doing ADL it's going to break a lot of

code.  I certainly leave off qualification when using that notation,

knowing that ADL is avoided.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com