http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53796
--- Comment #12 from Clive Page <clivegpage at gmail dot com> 2012-06-30 08:40:34 UTC --- Jerry > Try this variation: > > integer(kind=8) :: s, r > open(unit=1, file='testsize.f90', status='old', recl=500) > inquire(unit=1, size=s, recl=r) > print *, 'size=', s, ' recl=', r > end Yes, that works as expected, giving r=500. The case that doesn't work as expected is when you don't use RECL in the OPEN statement, and use inquire to find the default size limit. I assume you are right that -1 represents the maximum unsigned integer - just a pity that Fortran interprets it as -1 not the largest +ve value. Regards