gcc/testsuite/gfortran.dg/realloc_on_assign_11.f90

   1 ! { dg-do run }
   2 ! PR52012 - tests of automatic reallocation on assignment for variable = array_intrinsic
   3 !
   4 ! Contributed by Tobias Burnus and Dominique Dhumieres
   5 !
   6   integer, allocatable :: a(:), b(:), e(:,:)
   7   integer :: c(1:5,1:5), d(1:5,1:5)
   8   allocate(b(3))
   9   b = [1,2,3]
  10
  11 ! Shape conforms so bounds follow allocation.
  12   allocate (a(7:9))
  13   a = reshape( b, shape=[size(b)])
  14   if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [7,9,3,3])) call abort
  15
  16   deallocate (a)
  17 ! 'a' not allocated so lbound defaults to 1.
  18   a = reshape( b, shape=[size(b)])
  19   if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [1,3,3,3])) call abort
  20
  21   deallocate (a)
  22 ! Shape conforms so bounds follow allocation.
  23   allocate (a(0:0))
  24   a(0) = 1
  25   if (any ([lbound(a), ubound(a), size(a), shape (a)] .ne. [0,0,1,1])) call abort
  26
  27 ! 'a' not allocated so lbound defaults to 1.
  28   e = matmul (c(2:5,:), d(:, 3:4))
  29   if (any ([lbound(e), ubound(e), size(e), shape (e)] .ne. [1,1,4,2,8,4,2])) call abort
  30   deallocate (e)
  31
  32 ! Shape conforms so bounds follow allocation.
  33   allocate (e(4:7, 11:12))
  34   e = matmul (c(2:5,:), d(:, 3:4))
  35   if (any ([lbound(e), ubound(e), size(e), shape (e)] .ne. [4,11,7,12,8,4,2])) call abort
  36 end