| Title: | Digital Fortran |
| Notice: | Read notes 1.* for important information |
| Moderator: | QUARK::LIONEL |
| Created: | Thu Jun 01 1995 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 1333 |
| Total number of notes: | 6734 |
Unix 4.0b Fortran 90 V4.1-270
I would expect a warning when compiling the following
code, but that doesn't occur :
rawhide.rto.dec.com> cat foo.f
SUBROUTINE T(N)
DIMENSION C(N)
C(1) = 1.
RETURN
END
rawhide.rto.dec.com> f90 -V -c -O foo.f
rawhide.rto.dec.com>
rawhide.rto.dec.com> f77 -V -c foo.f
fort: Severe: foo.f, line 3: Variable name, constant, or expression invalid in t
his context
DIMENSION C(N)
----------------^
Apparently using an older compiler version (4.0 ) allows f77 -V -c foo.f
without any warning ???
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1283.1 | QUARK::LIONEL | Free advice is worth every cent | Tue May 06 1997 15:51 | 5 | |
This is an automatic array, a new F90 feature, since the array name does not appear as an argument. It is also supported in F77, but I think there was a bug in F77 4.1 that broke it. Dave will be able to fill in the details. Steve | |||||
| 1283.2 | Something old, something new | TLE::EKLUND | Always smiling on the inside! | Tue May 06 1997 20:54 | 11 |
We implemented the Fortran-90 automatic array feature in
Fortran-77, and then broke it (I presume your f77 compiler is
edit 4-92). If one allows an f90 automatic array, your program
is just fine. We fixed the bug (see note 1167) with a later edit
to f77. It has not appeared in an update kit yet. I verified
that our current f77 compiler handles your source example just
fine.
Cheers!
Dave Eklund
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