https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98498
Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |pault at gcc dot gnu.org
--- Comment #1 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 49869
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49869&action=edit
Fix pending the iterpretation request
! { dg-do compile }
! { dg-options "-fdump-tree-original" }
!
! gfortran.dg/interface_49.f90
! Tests the fix for PR98498 in which the '==' operator interface was not
! applied to intrinsic type/kind expressions. This meant that the
! interface was not applied to the .eq. expressions in 'star_eq' even
! though the unlimited polymorphic dummies are type compatible with all
! entities. The tree dump used to contain 10 'star_eq's.
!
! Note that overridding intrinsic operators with functions that have
! compliant intrinsic dummies still yields the error "Operator interface
! at (1) conflicts with intrinsic interface", as required by
! F2003(12.3.2.1.1).
!
! Contributed by Paul Thomas <pa...@gcc.gnu.org>
!
MODULE mytypes
IMPLICIT none
TYPE pvar
character(len=20) :: name
integer :: level
end TYPE pvar
interface operator (==)
module procedure star_eq
end interface
contains
RECURSIVE function star_eq(a,b) ! The recursive attribute should not be
required.
implicit none
class(*), intent(in) ::a,b
logical ::star_eq
if (.not. same_type_as (a, b)) then
star_eq = .false.
return
end if
select type (a)
type is (pvar)
select type (b)
type is (pvar)
print *, "a & b are type pvar"
if((a%level.eq. b%level) .and. (a%name .eq. b%name)) then
star_eq = .true.
else
star_eq = .false.
end if
end select
class default
print *, "class default: returning false"
star_eq = .false.
end select
end function star_eq
end MODULE mytypes
program test_eq
use mytypes
implicit none
type(pvar) x, y
x = pvar('test 1', 100)
y = pvar('test 1', 100)
write(*, *) x == y
x = pvar('test 1', 100)
y = pvar('test 2', 100)
write(*, *) x == y
end program test_eq
! { dg-final { scan-tree-dump-times "star_eq" 12 "original" } }
