Re: [boost] [swap] please update documentation with the header I need to include

Subject: Re: [boost] [swap] please update documentation with the header I need to include
From: Daniel James (daniel_james_at_[hidden])
Date: 2009-06-29 06:07:29

2009/6/29 Peter Simons <simons_at_[hidden]>:
> Hi Niels,
>
>  > [It's] not recommended to do an unqualified call to boost::swap:
>  >
>  >   std::string a1[42];
>  >   std::string a2[42];
>  >
>  >   boost::swap(a1, a2);  // Okay.
>  >
>  >   using boost::swap;
>  >   swap(a1, a2);  // Does not compile!
>
> why do you think this code won't compile? As far as I can tell, ADL
> would resolve the call to invoke std::swap().

Try it. std::swap can't swap arrays, boost::swap can. boost::swap will
also call swap via. ADL when appropriate and supports compilers that
don't support ADL. Which is why it's recommended that 'boost::swap' is
used.

Daniel