int64 initial commit
cp Makevars Makevars.win
normalising the copyright statement to what Google seems to use in other projects
normalising the copyright statement to what Google seems to use in other projects
some C++ifying
update copyright on .R file
linux build fix:  stdint (was already commited by Romain in parallel) and limits
implementation of unique
unit tests for unique
adding sort.[u]int64
abs/sign
abs/sign
...
implementing Math2 (round and signif)
cumsum, cummax, etc ...
allowing as.int64( [double] )
adding names and names<-
exporting names and names<- from the int64 namespace
better LongVector(SEXP) ctor
simpler as_long impl based on new LongVector ctor