https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78351
--- Comment #19 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Thu, Nov 17, 2016 at 12:43:40AM +0000, kevin.b.beard at nasa dot gov wrote: > Many thanks to Jerry DeLisle [jvdeli...@charter.net]; he made us realize > that an internal record is now not treated the same as an external record! Ugh. It ought to be treated the same. > I didn't think of that. > > In the attached example, you see "1,2,3,,,," read from a file with > > READ(1,'(2i10)') i,j > > DOES still work in gfortran 4.4.7, but This is a bug that needs to be fixed. > READ(1,'(a)') line > READ(line,'(2i10)') i,j > > does NOT. Standard conforming behavior as I have now pointed out in 3 posts. > If one parses the string appropriately and reads > it one part of a time, it does work: > > READ(line(1:1),'(i10)') i > READ(line(3:3),'(i10)') j In the above, you are hitting an end-of-record. I would need to go read the Standard to see what happens in this situation. I suspect that this may be Standard conforming, but the variables i and j are undefined and technically cannot be referenced until the variables become defined.
