<div class="gmail_quote">On Tue, Mar 16, 2010 at 5:44 PM, Eric Whitcombe <span dir="ltr"><<a href="mailto:ericwsf@gmail.com">ericwsf@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div bgcolor="#ffffff"> <div><font size="2" face="Arial">I�haven't received any response to my question. If this is is not the appropriate forum I would appreciate some suggestions as to where to ask the question. I have gone over the mailing list groups page and this seems to be the place to ask it but I could be wrong. <div><font size="2" face="Arial"></font>�</div> <div><font size="2" face="Arial">��� I am stepping through <font face="Courier">interprocess</font> shared memory code�and I was a little confused by the <font face="Courier">offset_ptr</font> code that I was hitting*. I cannot figure out how that is specified to the template of <font face="Courier">rbtree_best_fit</font>. I see in <font face="Courier">boost/interprocess/interprocess_fwd.hpp</font> the declaration of <font face="Courier">managed_shared_memory</font> by typedef'ing <font face="Courier">basic_managed_shared_memory</font> with <font face="Courier">rbtree_best_fit<mutex_family></font> as the <i>AllocationAlgorithm</i> argument but I can't figure out how <font face="Courier">offset_ptr</font> is is supplied as the <i>VoidPointer</i> argument to the <font face="Courier">rbtree_best_fit</font> template. That template has 3 arguments but the forward declaration only provides one. Are the other two somehow inferred? If so, how? <br>�<br></font></div> <div><font size="2" face="Arial"></font>�</div> <div><font size="2" face="Arial">* I have looked at the documentation for <font face="Courier">interprocess</font> - including the explanation of <font face="Courier">offset_ptr</font>. I understand the need for it. I just don't see how it is incorporated into the <font face="Courier">rbtree_best_fit</font> template. </font></div></font></div></div> <br></blockquote></div><br>Hi Eric - I don't have the knowledge to answer your question I'm afraid, but as a general comment your question<br>is too vague and general. You might get a better response by composing the shortest example bit of code that<br> demonstrates your point, and then asking why line 'X' doesn't work/compile or whatever. It's generally easier to<br>answer highly specific questions rather than general ones, and then you have to do the generalisation.<br> <br>Hope that helps a little.<br><br>Regards, Rob.<br>