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[Bug fortran/45190] New: Compile-time error on valid code: can't convert TYPE(_gfortran_iso_c_binding_c_ptr) to TYPE(c_ptr)
- From: "mathewc at nag dot co dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Aug 2010 07:50:59 -0000
- Subject: [Bug fortran/45190] New: Compile-time error on valid code: can't convert TYPE(_gfortran_iso_c_binding_c_ptr) to TYPE(c_ptr)
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
> gfortran --version
GNU Fortran (GCC) 4.5.1
> uname -a
Linux tiree.nag.co.uk 2.6.27.25-170.2.72.fc10.x86_64 #1 SMP Sun Jun 21 18:39:34
EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
> cat cfpointerstress.f90
MODULE NAG_J_TYPES
USE ISO_C_BINDING, ONLY : C_PTR
IMPLICIT NONE
TYPE :: NAG_IMAGE
INTEGER :: WIDTH, HEIGHT, PXFMT, NCHAN
TYPE (C_PTR) :: PIXELS
END TYPE NAG_IMAGE
END MODULE NAG_J_TYPES
program cfpointerstress
use nag_j_types
use iso_c_binding
implicit none
type(nag_image),pointer :: img
type(C_PTR) :: ptr
real, pointer :: r
allocate(r)
allocate(img)
r = 12
ptr = c_loc(img)
write(*,*) 'C_ASSOCIATED =', C_ASSOCIATED(ptr)
call c_f_pointer(ptr, img)
write(*,*) 'ASSOCIATED =', associated(img)
deallocate(r)
end program cfpointerstress
> gfortran cfpointerstress.f90
cfpointerstress.f90:19.8:
ptr = c_loc(img)
1
Error: Can't convert TYPE(_gfortran_iso_c_binding_c_ptr) to TYPE(c_ptr) at (1)
--
Summary: Compile-time error on valid code: can't convert
TYPE(_gfortran_iso_c_binding_c_ptr) to TYPE(c_ptr)
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mathewc at nag dot co dot uk
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45190