gcc/testsuite/gfortran.dg/move_alloc.f90

   1 ! { dg-do run }
   2 ! Test the move_alloc intrinsic.
   3 !
   4 ! Contributed by Erik Edelmann  <eedelmann@gcc.gnu.org>
   5 !            and Paul Thomas  <pault@gcc.gnu.org>
   6 !
   7 program test_move_alloc
   8
   9     implicit none
  10     integer, allocatable :: x(:), y(:), temp(:)
  11     character(4), allocatable :: a(:), b(:)
  12     integer :: i
  13
  14     allocate (x(2))
  15     allocate (a(2))
  16
  17     x = [ 42, 77 ]
  18
  19     call move_alloc (x, y)
  20     if (allocated(x)) call abort()
  21     if (.not.allocated(y)) call abort()
  22     if (any(y /= [ 42, 77 ])) call abort()
  23
  24     a = [ "abcd", "efgh" ]
  25     call move_alloc (a, b)
  26     if (allocated(a)) call abort()
  27     if (.not.allocated(b)) call abort()
  28     if (any(b /= [ "abcd", "efgh" ])) call abort()
  29
  30     ! Now one of the intended applications of move_alloc; resizing
  31
  32     call move_alloc (y, temp)
  33     allocate (y(6), stat=i)
  34     if (i /= 0) call abort()
  35     y(1:2) = temp
  36     y(3:) = 99
  37     deallocate(temp)
  38     if (any(y /= [ 42, 77, 99, 99, 99, 99 ])) call abort()
  39 end program test_move_alloc