From: "Jim Grandy" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Peter Dimov" <[EMAIL PROTECTED]>
> One thing missing from intrusive_ptr as implemented in 1.29 is the ability > to avoid the add_ref at construction time. > > There are a number of APIs using refcounted opaque types (Apple in > particular is fond of them) in which a function call will "pre-acquire" a > reference for the caller. In many OS X APIs, this is designated by use of > the term "Copy" or "Create" instead of "Get". If you think about it, adding > a ref before returning is necessary for flat C APIs to avoid thread > synchronization problems. [...] > This would allow one to use this style of code: > > intrusive_ptr<OpaqueRefCountedString> s = > dont_addref(CopyMenuTitle(m)); intrusive_ptr<OpaqueRefCountedString> s = CopyMenuTitle(m); s->Release(); // or however it's spelled ? BTW, there is no boost-request list, I think. :-) _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
