Larry Evans <cppljevans@cox-internet.com> writes:
On 03/28/2006 05:45 PM, David Abrahams wrote:
I've developed some facilities that perhaps ought to be developed into full-fledged libraries or components of existing Boost libraries. This work centers around my long-standing threat to build a library that could create smart pointers safely, without ever exposing a raw pointer to the user. For example, [snip] std::auto_ptr<foo> y(new_<foo>(*x, "hello, world", x)); boost::shared_ptr<foo> z(new_<foo>(*x, (char const*)"hello, world", x));
My interpretation of "create smart pointers safely" is that there's no way the user can "accidentally" create a smart pointer which "originally" was a raw pointer. Since shared_ptr has a CTOR taking a raw pointer, this doesn't make shared_ptr "safe".
...
Or maybe I'm misunderstanding your definition of "safe"?
Deliberately, it seems. I didn't say I was ``making shared_ptr "safe".'' I said I was making it possible to create smart pointers safely. -- Dave Abrahams Boost Consulting www.boost-consulting.com