Phobos docs in pdf?

[SeanC4S]

I used CUPS to print as pdf individual pages from the standard 
library. I want to get all the basic information I need easily at 
hand.
I used unpredictableSeed in my code.  It seems to be a property 
of something somewhere.
I hope it is thread safe.  Who knows?  I guess I'll look at the 
source code like you say to try to understand.
The plan is to use D as a low level programming language as much 
as possible.  In particular to maintain the ability to translate 
the code to other languages as easily as possible.
I wonder if there is an integer bit rotate instruction in D 
somewhere? I see the dmd complier doesn't convert say  s3=(s3 << 
45) | (s3 >>> 19); into a rotate instruction like gcc would.  
Maybe I need to find some optimizer settings for dmd.