Re: [Boost-users] [shared_ptr] Error in Constructor

On Friday 21 May 2010 20:54:25 David A. Greene wrote:

What's the rationale for the enable_if'd constructor? Is BOOST_SP_NO_SP_CONVERTIBLE an official part of the library? Apparently it is causing gcc to check all doSomething members of Action against shared_ptr and those checks are causing instantiations of Wrapper<A>.

Urk. I just found out. The attached test does not compile with BOOST_SP_NO_SP_CONVERTIBLE because it renders shared_ptr unable to construct pointer-to-base from pointer-to-derived. Ugh. How does one satisfy the requirements of both of these tests? The first test has the requirement that types tracked by shared_ptr need not be defined in some translation units. The second has the requirement that shared_ptr be able to construct a pointer-to-base from a pointer-to-derived. -Dave