Gevik Babakhani wrote: <blockquote cite="mid:002401c91ef4$16302fc0$0a01a8c0@gevmus" type="cite"><blockquote
type="cite"><prewrap="">Advantage of C++ is that it reduce lot of OO code written in
C in PostgreSQL, but it is so big effort to do that without
small gain. It will increase number of bugs. Do not forget
also that C++ compiler is not so common (so good) on
different platforms. If somebody interesting in that yes but
like a fork ( PostgreSQL++ :-). </pre></blockquote><pre wrap="">
Reducing OO code that is written in C is one of my major interests. After
some investigating myself it appears that having the codebase fully
(rewritten in C++ will have an impact on the performance. So I guess such an
effort will result the code being more C++ish and fully OO, being a mixture
in C with some OO taste. </pre></blockquote><br /> Not sure what "reduce" means here. Is the following really a
*worthwhile*reduction?<br /><br /> Class* object = Class_new(...);<br /> Class_method(object, ...);<br />
Class_destroy(object);<br/><br /> Compared to:<br /><br /> Class *object = new Class(...);<br />
object->method(...);<br/> delete object;<br /><br /> Yes, this can sometimes be abbreviated by using stack-based
objects:<br/><br /> Class object (...);<br /> object.method(...);<br /><br /> Though, this limits capabilities
interms of automatic memory management in terms of passing pointers to object around, or to using a memory area that is
cleanedup as a whole "in bulk" once it is no longer required.<br /><br /> STL can help, but it can also hinder.<br
/><br/> I'm not convinced that a C++ PostgreSQL would be that much smaller either in terms of source lines of code, or
interms of resulting binary size. Also, it may not run faster. If the method calls are virtual, for instance, and
derivedclasses are used, each method call becomes one more level of indirection.<br /><br /><blockquote
cite="mid:002401c91ef4$16302fc0$0a01a8c0@gevmus"type="cite"><pre wrap=""></pre><blockquote type="cite"><pre
wrap="">Betteridea is to start to use C99 in PostgreSQL ;-). </pre></blockquote><pre wrap="">
I have not investigated this yet. But I am very interested to know what the
advantages would be to "upgrade" the code to C99 standards</pre></blockquote><br /> The code might look a little bit
cleaner,but other than that, I don't see it running faster or being significantly smaller.<br /><br /> Cheers,<br />
mark<br/><br /><pre class="moz-signature" cols="72">--
Mark Mielke <a class="moz-txt-link-rfc2396E" href="mailto:mark@mielke.cc"><mark@mielke.cc></a>
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