WG5, Following the changes made at the recent J3 meeting, I have updated my summary of co-arrays. The new version is visible as ftp://ftp.nag.co.uk/sc22wg5/N1651-N1700/N1677.pdf or ftp://ftp.nag.co.uk/sc22wg5/N1651-N1700/N1677.ps.gz John.