Why not to use Smart types in a container?

[paresh_joe]

Some coding standards at my end says that, Do not use smart types in a container? Does anyone know reason for this?

[paresh_joe]

Any extra things that one has to consider while using this?

[followait]

When copying container auto_ptr will incur problems. No problem with shared_ptr. I'm using shared_ptr in a vector now. :)

system

[paresh_joe]

Thanks for the answer. but my other question is e.g. what care needs to be taken if i use _bstr_t in a vector?

[followait]

_bstr_t is like shared_ptr, it can be copied, but there is a problem about the semantic: For example, 1. let vecotr a contain some _bstr_t pointers, 2. copy a to b 3. get some pointer in b, and changed the object through the pointer, think what about a. I think it is not the semantic of copy.

system