https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84389
--- Comment #3 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Thu, Feb 15, 2018 at 09:04:24PM +0000, fortranfan at outlook dot com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84389 > > --- Comment #2 from Vipul Parekh <fortranfan at outlook dot com> --- > Thank for your response. > > Per section 1.4.1 in 10-007r1 toward Fortran 2008 on syntax rules toward the > BNF convention in the document, line 16 says [] encloses an optional item. > > R1303 format-items is format-item [ [ , ] format-item ] > > then suggests the comma in the format item is optional and the format in the > first post should work as shown. > Ah, indeed! You are correct. I simply missed the enclosing [ ] in looking through all of the ENBDF rules.