1! { dg-do compile }
2! { dg-options "-std=legacy" }
3!
4! PR20866 - A statement function cannot be recursive.
5! Contributed by Joost VandeVondele <jv244@cam.ac.uk>
6!
7! Modified 20051110 to check that regressions PR24655 and PR24755
8! are fixed. Thanks to pavarini@pv.infn.it and tdeutsch@cea.fr for
9! the tests.
10!
11  INTEGER :: i, st1, st2, st3, lambda, n
12  REAL :: x, z(2,2)
13  character(8) :: ch
14  real(8)   :: fi, arg, sigma, dshpfunc
15  real(8), parameter :: one=1d0
16!
17! Test check for recursion via other statement functions, string
18! length references, function actual arguments and array index
19! references.
20!
21  st1 (i) = len (ch(st2 (1):8))
22  st2 (i) = max (st3 (1), 4)
23  st3 (i) = 2 + cos (z(st1 (1), i)) ! { dg-error "is recursive" }
24!
25! Test the two regressions.
26!
27  fi (n) = n *one
28  dshpfunc (arg)=-lambda/sigma*(arg/sigma)**(lambda-1)*exp(-(arg/sigma)**lambda)
29!
30! References to each statement function.
31!
32  write(6,*) st1 (1), fi (2), dshpfunc (1.0_8)
33  END
34