How does D improve design practices over C++?

[Tony]

"Jarrett Billingsley" <jarrett.billingsley at gmail.com> wrote in message 
news:mailman.356.1226010025.3087.digitalmars-d at puremagic.com...
> On Thu, Nov 6, 2008 at 5:01 PM, Jarrett Billingsley
> <jarrett.billingsley at gmail.com> wrote:
>> On Thu, Nov 6, 2008 at 4:18 PM, Tony <tonytech08 at gmail.com> wrote:
>>> Compile times as I am not doing large scale development. And with so 
>>> much
>>> processor power available these days, I really don't see a problem with
>>> compile times. Some care in laying out code and headers goes a long way.
>>
>> Boost.
>
> I did also want to make another point about this.  Processors are not
> getting that much faster; it's not 2001 anymore.  We've pretty much
> hit the wall for single-core performance, and compilation is an
> extremely difficult problem to parallelize.  Yes, you can compile
> multiple files at once, but if a single compilation unit takes 20
> minutes to compile, it doesn't matter how many cores you've got.  The
> shortest compile time you can get is 20 minutes.  Even if your
> compiles are "only" three minutes, if you spend three minutes
> compiling, followed by ten minutes of testing, that means you're
> spending almost a quarter of your time compiling.  That doesn't seem
> like an efficient use of time.

I have designed/coded for months without ever pressing the compile button. 
Some programmers use the compiler in a very iterative way: using it as a 
debugger is bad practice.

Tony