Re: [boost] [Everyone!] VC 7.1: "'detail' : ambiguous symbol"

From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-09-03 13:12:14

Douglas Gregor wrote:
> I've been doing battle with VC 7.1 and its "'detail' : ambiguous
> symbol" error messages for a while. The basic problem is that we have
> a file with, essentially, "using namespace boost; using namespace
> boost::spirit;" in it. Since VC 7.1 resolves namespace names a bit
> strangely, these using directives end up being resolved late in the
> compilation process, so they make lookups of names like "detail"
> ambiguous. The most recent of these problems shows up here:
> 
>     http://tinyurl.com/a4d6p

That's the problem two-phase lookup was designed to solve...

>     1) Make me fix the graph library with a bunch of using
> declarations instead of the blanket "using namespace boost::spirit;"
> that causes the problem. But, users might still run into this issue.
>     2) Keep on qualifying "detail" references until it stops causing
> problems
>     3) Stop using "detail" and instead use "[lib]_detail" that is
> different for each lib.

As much as I hate it, (2) seems the only viable option.