One of the advertised advantages was that is was written purely in standard C++, which isn't the case of Boehm which isn't portable.
I am sure Boehm supports so many platforms and many compilers. Even so, an interpretation from C to ISO C++ is enough for that problem.
auto_ptr<char*> traced_buffer(new (gc_traced) char[1024]); This raises undefined behaviour, I believe.
gc allocated memory slab is always zero, so there would be no live pointers on the traced_buffer memory slab. I think we the concept of the GC should encapsulate two things separately. memory allocation/deallocation object construction/destruction [example class foo; { auto_ptr< foo > foo_bar(new (gc) foo()); } // call foo_bar->~foo(); example] the RAII call the destructor but the memory that was occupied is not necessarily free. the gc::collect(), collects the memory as well as calling the destructor for non-destructed objects. -- Kasra