GNU Info

(g77-295.info)Standard Support

---

Next: Conformance Prev: Direction of Language Development Up: Language

---

Enter node , (file) or (file)node

ANSI FORTRAN 77 Standard Support
================================

   GNU Fortran supports ANSI FORTRAN 77 with the following caveats.  In
summary, the only ANSI FORTRAN 77 features `g77' doesn't support are
those that are probably rarely used in actual code, some of which are
explicitly disallowed by the Fortran 90 standard.

No Passing External Assumed-length

CHAR*(*) CFUNC restriction.

No Passing Dummy Assumed-length

CHAR*(*) CFUNC restriction.

No Pathological Implied-DO

No `((..., I=...), I=...)'.

No Useless Implied-DO

No `(A, I=1, 1)'.