gcc/testsuite/gfortran.fortran-torture/execute/der_point.f90

   1 ! Program to test DERIVED type with components point to the DERIVED
   2 ! type itself, and two DERIVED type with componets point to each
   3 ! other.
   4 program nest_derived
   5    type record
   6       integer :: value
   7       type(record), pointer :: rp
   8    end type record
   9
  10    type record1
  11       integer value
  12       type(record2), pointer :: r1p
  13    end type
  14
  15    type record2
  16       integer value
  17       type(record1), pointer :: r2p
  18    end type
  19
  20    type(record), target :: e1, e2, e3
  21    type(record1), target :: r1
  22    type(record2), target :: r2
  23    nullify(r1%r1p,r2%r2p,e1%rp,e2%rp,e3%rp)
  24
  25    r1%r1p => r2
  26    r2%r2p => r1
  27    e1%rp => e2
  28    e2%rp => e3
  29
  30    r1%value = 11
  31    r2%value = 22
  32
  33    e1%value = 33
  34    e1%rp%value = 44
  35    e1%rp%rp%value = 55
  36
  37    if (r1%r1p%value .ne. 22) call abort
  38    if (r2%r2p%value .ne. 11) call abort
  39    if (e1%value .ne. 33) call abort
  40    if (e2%value .ne. 44) call abort
  41    if (e3%value .ne. 55) call abort
  42    if (r1%value .ne. 11) call abort
  43    if (r2%value .ne. 22) call abort
  44
  45 end