Larry Evans <cppljevans@cox-internet.com> writes:
On 01/20/2006 10:47 AM, Larry Evans wrote:
On 01/20/2006 10:00 AM, David Abrahams wrote: [snip]
http://www.boost.org/doc/html/signals/s05.html#id2739308 [snip] I'll read the docs to see if it'll work. [snip] The file:
http://www.boost.org/doc/html/visit_each.html
has:
visit_each mechanism allows a visitor to be applied to every subobject in a given object.
but there's no definition of subobject or object.
These terms are defined in the C++ standard.
Is a subobject any instance of a class,
Or a builtin type.
or only those derived from signals::trackable?
The file also contains:
other uses may surface if used universally (e.g., conservative garbage collection).
does the "conservative" qualifier mean the subobjects are located conservatively (e.g. comaring each word in the containing object with some flag value)?
"Conservative garbage collection" usually means that a memory block is considered to be referenced as long as there's a bit pattern somewhere that *could* be a pointer into it. I think the word "conservative" is just wrong in this context and the author meant the opposite -- that memory is considered to be referenced iff there is a real pointer into that memory -- but I could be mistaken. -- Dave Abrahams Boost Consulting www.boost-consulting.com