A recent R devel NEWS item: approx(), spline(), splinefun() and approxfun()
also work for long vectors.
In current R devel, in function 'approx1' in src/library/stats/src/approx.c and
in function 'spline_eval' in src/library/stats/splines.c, in
#ifdef LONG_VECTOR_SUPPORT
there is a comment "R_xl
Regarding the Windows character encoding issues Daniel Possenriede
posted about earlier this month, where non-Latin-1 strings were getting
marked as such
(https://stat.ethz.ch/pipermail/r-devel/2017-August/074731.html ):
The issue is that on Windows, when the character locale is Windows-1252,