Re: [v3]libstdc++/13631

[François Dumont <francois dot cppdevs at free dot fr>]

On 12/13/2010 11:11 PM, Paolo Carlini wrote:
> The issue is that the entire *.so is built with no implicit templates,
> thus the error, because during the build the implicit instantiation of a
> template (required elsewhere in the *.so) is suppressed. In general, we
> have explicit instantiation *.cc files in /src for that reason. Anyway,
> I'm indeed quite dubious that the way to go is using<map>  as an
> implementation detail, it would be the first time we do something
> similar. But if we can find a way to have such uses in a *.cc file, and
> then export from the *.so only functions using it behind the scenes, it
> would still make sense...
>
> Paolo.
>    
Thanks for the tip, indeed with the explicit instantiation it works. 
Here is attached what I came to.

I agree that explicitly instantiating the map and associated _Rb_tree 
might be too much but I hope that optimization will only keep what is 
really used. Just tell me if you prefer I introduce some kind of hand 
written map equivalent.

The only problem left is in the usage of __gnu_cxx::__mutex:

messages_members.cc:73:7: error: ‘__mutex’ in namespace ‘__gnu_cxx’ does 
not name a type
messages_members.cc: In member function ‘{anonymous}::Catalogs::catalog 
{anonymous}::Catalogs::_M_add(const string&)’:
messages_members.cc:52:2: error: ‘__scoped_lock’ is not a member of 
‘__gnu_cxx’
messages_members.cc:52:27: error: expected ‘;’ before ‘lock’

I though __mutex was a compiler intrinsic but it is not or I need to add 
some compilation option to make it available. I already try to add 
-std=gnu++0x with no success. What is needed to use __mutex ?

François

Attachment: messages_members.patch
Description: Text document