Why C++ compiles slowly

[Walter Bright]

Steven Schveighoffer wrote:
> On Wed, 18 Aug 2010 21:05:34 -0400, Walter Bright 
> <newshound2 at digitalmars.com> wrote:
> 
>> http://www.drdobbs.com/blog/archives/2010/08/c_compilation_s.html
>>
>> I'll be doing a followup on why D compiles fast.
> 
> Very interesting stuff.
> 
> I'd like to have an article describing how to diagnose slow D 
> compilation :P
> 
> Dcollections with unit tests compiles in over a minute, with I think 
> about 12 files that contain implementation.  I estimate probably 5000 loc.

You can start with -v.