> Not to be picky, but that is not the point. The alignment is due to the > attrib pointer which is at offset 8 despite the fact that there is only a > 4-byte element in front of it. Maybe for better illustration, this is the > layout on 64-bit machines:
Ok, thanks for the clarification. > > * 4 bytes: sxpinfo header (= 32 bits) > * 4 bytes: --- padding so next ptr is aligned --- > * 8 bytes: pointer to attributes > * 8 bytes: pointer to next node > * 8 bytes: pointer to previous node > * 4 bytes: length > * 4 bytes: true length > > = 40 bytes > > This is already aligned so the payload alignment doesn't any extra padding so > that has no effect at all. Do pointers always have to be aligned? Hadley -- Chief Scientist, RStudio http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
