Re: [Boost-users] reversible_ptr_container.hpp compilation issue

16 Mar 2007

      Brian Neal wrote:
...
On 3/15/07, Brian Neal  wrote:
...
On 3/15/07, Thorsten Ottosen  wrote:
...
Brian Neal wrote:
...
Hi -
We used the ptr_container library under gcc and Linux. We are now
porting our software to the Integrity OS and the Green Hills Multi C++
compiler. This compiler has the EDG front end. It cannot compile
reversible_ptr_container.hpp.
I had to change this:
class reversible_ptr_container
   {
   private:
       BOOST_STATIC_CONSTANT( bool, allow_null = Config::allow_null );
typedef BOOST_DEDUCED_TYPENAME Config::value_type Ty_;
To this:
class reversible_ptr_container
   {
   public:
       typedef BOOST_DEDUCED_TYPENAME Config::value_type Ty_;
   private:
       BOOST_STATIC_CONSTANT( bool, allow_null = Config::allow_null );
...
The problem is, I believe, that null_clone_allocater, as a nested
class of reversible_ptr_container, has no special visibility to see
the type Ty_, which is private in the outer class.
This makes sense.

I guess a fix could be to make the class a friend, but I'm not keen
on using this with templates.

I guess I shuld simply use

   typedef typename Config::value_type* pointer;

inside null_clone_allocator

Thomas, can we fix this for 1.34?

-Thorsten