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[Bug fortran/41083] New: Implicit typing: Save implicit type for external procedures
- From: "burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Aug 2009 12:06:49 -0000
- Subject: [Bug fortran/41083] New: Implicit typing: Save implicit type for external procedures
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
Split off from PR 39997.
While normal variables are always implicitly typed - any variable needs to have
a type -, external procedures are special: Either they are subroutines with no
implicit type or implicitly typed functions
module m
external foo ! real function or subroutine
end module m
subroutine one()
use m
implict none
y = foo() ! Implicitly typed real function
end subroutine one
module m2
implicit none
external foo ! subroutine due to implicit none
end module m2
subroutine one()
use m2
implict logical(1)(A-Z)
y = foo() ! Invalid: Foo has no type due to implicit none
end subroutine one
See mail thread in the J3 mail list:
http://j3-fortran.org/pipermail/j3/2009-May/002736.html
Interpretation request at
http://www.j3-fortran.org/doc/year/09/09-236r1.txt
And only vaguely related c.l.f:
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/b3a7e94ddf6b8ff3
--
Summary: Implicit typing: Save implicit type for external
procedures
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: rejects-valid, accepts-invalid
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41083