Re: [Boost-users] Assigning smart/shared_ptr pointer to C struct

adharankar@verizon.net wrote:

What is wrong in assigning a smart/shared_ptr pointer in C++ code to a struct which may then be passed to a C code?

There is no safe way to pass any non-POD type to C code. In your example, this means both the shared_ptr object and the pointed-to A object. You need to ensure the lifetime of the pointer manually, and you need to extract the raw pointer and pass that to the C code. You also need to make it point to a POD type. Sebastian Redl