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Date: Sat, 31 Mar 2007 22:04:00 -0000
Subject: [Bug ada/31415]  New: Illegal program not detected, Ada 2005, 3.9.4(12/2) and 7.5(6.1/2)
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From: "ludovic at ludovic-brenta dot org" <gcc-bugzilla@gcc.gnu.org>
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Debian Bug#416973

In the following program, the declaration of T3 is illegal because it
extends a limited type (T1) and a nonlimited interface (T2).

-- compiled -gnat05
-- error not detected
package pak1 is
   -- RM 3.9.4(12/2) and 7.5(6.1/2)
   -- check that both ancestors must be either limited or nonlimited
   type T1 is tagged limited null record;
   type T2 is interface;
   type T3 is new pak1.T1 and pak1.T2 with null record;  --ERROR: mixed types
end pak1;

To reproduce:
gnatmake -gnat05 pak1.ads

Error expected:
pak1.ads:8:30: all ancestors must be either limited or nonlimited


-- 
           Summary: Illegal program not detected, Ada 2005, 3.9.4(12/2) and
                    7.5(6.1/2)
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ludovic at ludovic-brenta dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31415