CVS difference for ai12s/ai12-0351-1.txt

Differences between 1.2 and version 1.3
Log of other versions for file ai12s/ai12-0351-1.txt

--- ai12s/ai12-0351-1.txt	2020/01/14 05:15:44	1.2
+++ ai12s/ai12-0351-1.txt	2020/01/17 05:59:20	1.3
@@ -1,6 +1,8 @@
-!standard 12.5.1(7)                                       20-01-10  AI12-0351-1/01
+!standard 12.5.1(7)                                       20-01-16  AI12-0351-1/02
 !standard 12.5.1(8)
 !class binding interpretation 20-01-10
+!status Amendment 1-2012 20-01-15
+!status ARG Approved 12-0-1  20-01-15
 !status work item 20-01-10
 !status received 19-11-23
 !priority Low
@@ -9,6 +11,9 @@
 !subject Matching for actuals for formal derived types
+All actual types have to be statically compatible with the ancestor type
+of a formal derived type without discriminants (even if they are 
@@ -32,7 +37,6 @@
     package I1 is new G1 (Integer); -- Illegal.
 Static compability includes constraints, null exclusions, and predicates.
 So, the check 
@@ -88,7 +92,8 @@
 It might seem that such a change would be incompatible, but we have not been
 able to identify any incompatibilities due to applying static compatibility
-to formal derived type matching of unconstrained types.
+to formal derived type matching of unconstrained types, other than the cases
+that need to be illegal.
 Note that the original bullets are mutually exclusive, so we preserve that
 property by putting the static compatibility requirement into the lead-in 

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