On C/C++ undefined behaviours

[Jonathan M Davis]

On Friday, August 20, 2010 10:04:41 Andrej Mitrovic wrote:
> What are these Java programs for the desktop that run fast? I haven't
> encountered any, but maybe that's just because I didn't try them all
> out. Eclipse takes at least 20 seconds to load on startup on my quad
> core, that's not very fast. On the other hand, CodeBlocks which is
> coded in C++ and has  a few dozen plugins installed runs in an
> instant.

There's plenty of Java code which runs just as fast or faster than comperable 
C++ code. I've seen it. However, you're generally talking about small, 
computation-intensive programs. When you're talking about full-blown desktop 
applications, there's so much more going on than math operations that the game 
is entirely different. I'm not sure that there are any full-blown desktop Java 
applications which are all that efficient in comparison to similar C++ 
applications. They're definitely useable, but not necessarily as efficient. Of 
course, the difference between Ecilpse and CodeBlocks could be entirely a design 
issue rather than a language one. Once you're dealing with anything that 
complex, accurately comparing apps can be difficult. It could just as easily be 
that Eclipse's design isn't as efficient  - be it due to features that it has 
which CodeBlocks doesn't or poor design, or whatever.

- Jonathan M Davis