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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/internal_dummy_3.f08
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+! { dg-do run }
+! { dg-options "-std=f2008 -fall-intrinsics" }
+
+! PR fortran/34162
+! Internal procedures as actual arguments (like restricted closures).
+! More challenging test involving recursion.
+
+! Contributed by Daniel Kraft, d@domob.eu.
+
+MODULE m
+ IMPLICIT NONE
+
+ ABSTRACT INTERFACE
+ FUNCTION returnValue ()
+ INTEGER :: returnValue
+ END FUNCTION returnValue
+ END INTERFACE
+
+ PROCEDURE(returnValue), POINTER :: first
+
+CONTAINS
+
+ RECURSIVE SUBROUTINE test (level, current, previous)
+ INTEGER, INTENT(IN) :: level
+ PROCEDURE(returnValue), OPTIONAL :: previous, current
+
+ IF (PRESENT (current)) THEN
+ IF (current () /= level - 1) CALL abort ()
+ END IF
+
+ IF (PRESENT (previous)) THEN
+ IF (previous () /= level - 2) CALL abort ()
+ END IF
+
+ IF (level == 1) THEN
+ first => myLevel
+ END IF
+ IF (first () /= 1) CALL abort ()
+
+ IF (level == 10) RETURN
+
+ IF (PRESENT (current)) THEN
+ CALL test (level + 1, myLevel, current)
+ ELSE
+ CALL test (level + 1, myLevel)
+ END IF
+
+ CONTAINS
+
+ FUNCTION myLevel ()
+ INTEGER :: myLevel
+ myLevel = level
+ END FUNCTION myLevel
+
+ END SUBROUTINE test
+
+END MODULE m
+
+PROGRAM main
+ USE :: m
+ IMPLICIT NONE
+
+ CALL test (1)
+END PROGRAM main
+
+! { dg-final { cleanup-modules "m" } }