gdb pretty-printers for libstdc++

[Jonathan Wakely]

Oops, this didn't go to the list the first time I sent it ...

2009/3/8 Jonathan Wakely:
> 2009/3/2 Phil Muldoon:
>>
>> I fixed that, and all the other issues mentioned in the email.   I also did
>> some other small comment clean-ups.  I've included a new copy of the file,
>> and also a patch.  What do you think?
>
> I finally got a chance to build gdb and apply the patch - very nice
> work!  Although it needs something like the attached to handle empty
> pointers.  I also think the names should be correct for the std::tr1
> types.
>
> std::shared_ptr and std::tr1::shared_ptr are distinct types and both
> can exist in the same program. The attached patch means gdb can print
> everything in this testcase:
>
>
> #include <memory>
> #include <tr1/memory>
> #include <vector>
>
> int main()
> {
>  {
>    using namespace std;
>    shared_ptr<int> p(new int(2));
>    std::vector<weak_ptr<void> > v(1, p);
>    p.reset();
>    v[0].reset();
>  }
>  {
>    using namespace std::tr1;
>    shared_ptr<int> p(new int(2));
>    std::vector<weak_ptr<void> > v(1, p);
>    p.reset();
>    v[0].reset();
>  }
>  return 0;
> }
>
> compile with g++ -std=c++0x
>
> The same is true of the unordered containers, but I haven't done the
> same for them in this patch.
>
> Jonathan
>
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