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Date: Wed, 18 Jul 2007 07:47:00 -0000
Subject: [Bug fortran/32804]  New: ISO C Binding: C_LOC argument checking needs improvement
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From: "burnus at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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subroutine aaa(in)
      use iso_c_binding
      implicit none
      CHARACTER(KIND=C_CHAR), DIMENSION(*), TARGET  :: in
      type(c_ptr) :: cptr
      cptr = c_loc(in)
      end subroutine

Wrongly rejected with:
  Error: CHARACTER argument 'in' to 'c_loc' at (1) must have a length of 1

      subroutine aaa(in)
      use iso_c_binding
      implicit none
      integer(KIND=C_int), DIMENSION(:), TARGET  :: in
      type(c_ptr) :: cptr
      cptr = c_loc(in)
      end subroutine

Wrongly accepts this; NAG f95 writes:

Error: aa.f90, line 6: The argument to C_LOC must not be an assumed-shape array


-- 
           Summary: ISO C Binding: C_LOC argument checking needs improvement
           Product: gcc
           Version: 4.3.0
            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
OtherBugsDependingO 32630
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32804