gcc/testsuite/gfortran.dg/alloc_comp_assign_8.f90

   1 ! { dg-do run }
   2 !
   3 ! Test the fix for PR35824, in which the interface assignment and
   4 ! negation did not work correctly.
   5 !
   6 ! Contributed by Rolf Roth <everyo@gmx.net>
   7 !
   8 module typemodule
   9   type alltype
  10      double precision :: a
  11      double precision,allocatable :: b(:)
  12   end type
  13   interface assignment(=)
  14     module procedure at_from_at
  15   end interface
  16   interface operator(-)
  17     module procedure  neg_at
  18   end interface
  19 contains
  20   subroutine at_from_at(b,a)
  21     type(alltype), intent(in) :: a
  22     type(alltype), intent(out) :: b
  23     b%a=a%a
  24     allocate(b%b(2))
  25     b%b=a%b
  26   end subroutine at_from_at
  27   function neg_at(a) result(b)
  28     type(alltype), intent(in) :: a
  29     type(alltype) :: b
  30     b%a=-a%a
  31     allocate(b%b(2))
  32     b%b=-a%b
  33   end function neg_at
  34 end module
  35   use typemodule
  36   type(alltype) t1,t2,t3
  37   allocate(t1%b(2))
  38   t1%a=0.5d0
  39   t1%b(1)=1d0
  40   t1%b(2)=2d0
  41   t2=-t1
  42   if (t2%a .ne. -0.5d0) call abort
  43   if (any(t2%b .ne. [-1d0, -2d0])) call abort
  44
  45   t1=-t1
  46   if (t1%a .ne. -0.5d0) call abort
  47   if (any(t1%b .ne. [-1d0, -2d0])) call abort
  48 end
  49
  50 ! { dg-final { cleanup-modules "typemodule" } }