johnco3 / bipstruct

Boost IPC Tester

BIPStruct

Boost IPC Tester

bipstruct's Issues

read access violation

The following technique to insert a Name/value into the database works:

db[Shared::String("one", mgr)] = MyPodStruct{ std::allocator_arg, mgr, 1, 20, Bytes{ 7, 8, 9 } };

but the following does not

db.emplace(pw, forward_as_tuple("one"), forward_as_tuple(1, 2, Bytes{ 1, 2 }));

as it results in a read access violation. Details as follows.

Exception thrown at 0x00007FFE0222A839 in bipstruct.exe: Microsoft C++ exception: 
boost::interprocess::interprocess_exception at memory location 0x00000019D6AFDEC0.
Exception thrown: read access violation.
**boost::forward<std::allocator_arg_t const & __ptr64>**(...) returned 0x1234.

Looks like the source of the problem is deep inside boost's allocator_traits.hpp

#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
	  template<class T, class ...Args>
	  BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::true_type, Allocator &a, T *p, BOOST_FWD_REF(Args) ...args)
	  {  a.construct( p, ::boost::forward<Args>(args)...);  }

	  template<class T, class ...Args>
	  BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::false_type, Allocator &, T *p, BOOST_FWD_REF(Args) ...args)
	  {  ::new((void*)p, boost_container_new_t()) T(::boost::forward<Args>(args)...); }
#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)