Why C++ compiles slowly

[Walter Bright]

dsimcha wrote:
> I wonder how much of the compile time of more typical projects is taken up by this
> linear search.  Could it be that that's also why std.stdio compiles relatively
> slow?  It's a big module that does a lot of template instantiations.  If this
> silly bug was a bottleneck everywhere, then I'd love to see D vs. Go compile times
> after this gets fixed.

It could very well be the source of these issues.