How to expose STL list over DLL boundary?

Question

I have a DLL which needs to access data stored in STL containers in the host application. Because C++ has no standard ABI, and I want to support different compilers, the interf

Answer 1

Perhaps you can pass something like "handles" to list/deque iterators? These handle types would be opaque and declared in a header file you would ship to the users. Internally, you would need to map the handle values to list/deque iterators. Basically, the user would write code like:

ListHandle lhi = GetListDataBegin();
const ListHandle lhe = GetListDataEnd();

while (lhi != lhe)
{
  int value = GetListItem(lhi);
  ...
  lhi = GetNextListItem(lhi);
}