http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47434
--- Comment #2 from Thomas Henlich <thenlich at users dot sourceforge.net> 2011-01-24 14:37:29 UTC --- A similar issue occurs with the values +Infinity and 0.0: program testnan real :: i, n = 0.0, m = tiny(0.0) i = 1.0 / n print "(F0.2)", i print "(F3.2)", i print "(F0.2)", n print "(F3.2)", n print "(F0.2)", m print "(F3.2)", m end program testnan Output: +Inf Inf 0.00 .00 .00 .00 The expected chosen field width is 3 in all cases, exactly for the same reason demanded by 10.7.2.1(6)