[Bug fortran/22571] Reject derived types for dummy arguments declared in the subroutine unless they are SEQUENCE

["burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from burnus at gcc dot gnu dot org  2007-08-14 15:48 -------
Note: Instead of having the SEQUENCE property, the BIND(C) attribute ("type,
bind(c) :: t") suffices as well.

"Two data entities have the same type if they are declared with reference to
the same derived-type definition. The definition may be accessed from a module
or from a host scoping unit. Data entities indifferent scoping units also have
the same type if they are declared with reference to different derived-type
definitions that specify the same type name, all have the SEQUENCE property or
all have the BIND attribute, have no components with PRIVATE accessibility, and
have type parameters and components that agree in order, name, and attributes.
Otherwise, they are of different derived types. A data entity declared using a
type with the SEQUENCE property or with the BIND attribute is not of the same
type as an entity of a type declared to be PRIVATE or that has any components
that are PRIVATE."


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22571