Re: [Boost-users] [hash] hashing of smart pointer types - prevent conversion to bool?

On 2010-07-07 09:01:32 +1000, Daniel James said:

On 6 July 2010 13:15, Alastair Rankine wrote:

...

I'm sure I'm not the first person to be caught out by this.

You're the first person to report it.

Maybe everyone else who is hashing smart pointers isn't willing to own up to it? :)

It won't happen for a 'std' or 'std::tr1' implementation, as this issue is caused by the boost extensions to the standard. It also won't happen in boost if you disable the extensions by defining 'BOOST_HASH_NO_EXTENSIONS'.

Ah good, that will probably work nicely for me. Thanks.

I do actually view this as a bug. Of the top of my header, I can think of a few possible fixes:

FWIW I like option 2 but I'm happy with any of these fixes. Look forward to seeing this in an upcoming boost, if not the next one. Thanks for your response.