gcc/testsuite/gfortran.dg/stfunc_4.f90

   1 ! { dg-do run }
   2 ! { dg-options "-std=legacy" }
   3 !
   4 ! Tests the fix for PR29389, in which the  statement function would not be
   5 ! recognised as PURE within a PURE procedure.
   6
   7 ! Contributed by Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
   8
   9   INTEGER :: st1, i = 99, a(4), q = 6
  10   st1 (i) = i * i * i
  11   FORALL(i=1:4) a(i) = st1 (i)
  12   FORALL(i=1:4) a(i) = u (a(i)) - a(i)** 2
  13   if (any (a .ne. 0)) call abort ()
  14   if (i .ne. 99) call abort ()
  15 contains
  16   pure integer function u (x)
  17     integer,intent(in) :: x
  18     st2 (i) = i * i
  19     u = st2(x)
  20   end function
  21 end