> On Fri, 2017-10-20 at 14:01 +0000, brodie gaslam via R-devel wrote: > > I'm thinking of this passage: > > > > > Logical values are sent as 0 (FALSE), 1 (TRUE) or INT_MIN = > > > -2147483648 (NA, but only if NAOK is true), and the compiled code > > > should return one of these three values. (Non-zero values other > > > than INT_MIN are mapped to TRUE.) > > > > The parenthetical seems to suggest that something like 'LOGICAL(x)[0] > > = 2;' will be treated as TRUE, which it sometimes is, and sometimes > > isn't: > > From: Martyn Plummer <plumm...@iarc.fr>
> The title of Section 5.2 is "Interface functions .C and .Fortran" and > the text above refers to those interfaces. It explains how logical > vectors are mapped to C integer arrays on entry and back again on exit. > > This does work as advertised. Not always. As I reported on bugzilla three years ago (PR#15878), it only works if the logical argument does not have to be copied. The bug has been fixed in pqR since pqR-2014-09-30. Radford Neal ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
