Index: gdb/testsuite/gdb.cp/casts.cc
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.cp/casts.cc,v
retrieving revision 1.1
diff -u -p -r1.1 casts.cc
--- gdb/testsuite/gdb.cp/casts.cc	23 Aug 2003 03:55:59 -0000	1.1
+++ gdb/testsuite/gdb.cp/casts.cc	28 Feb 2008 18:48:29 -0000
@@ -15,6 +15,8 @@ main (int argc, char **argv)
 {
   A *a = new B(42, 1729);
   B *b = (B *) a;
+  A &ar = *b;
+  B &br = (B&)ar;
 
   return 0;  /* breakpoint spot: casts.exp: 1 */
 }
Index: gdb/testsuite/gdb.cp/casts.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.cp/casts.exp,v
retrieving revision 1.6
diff -u -p -r1.6 casts.exp
--- gdb/testsuite/gdb.cp/casts.exp	1 Jan 2008 22:53:19 -0000	1.6
+++ gdb/testsuite/gdb.cp/casts.exp	28 Feb 2008 18:48:29 -0000
@@ -80,3 +80,20 @@ gdb_test "print * (B *) a" ".* = {<A> = 
 # the dereference.
 gdb_test "print * b" ".* = {<A> = {a = 42}, b = 1729}" \
     "let compiler cast base class pointer to derived class pointer"
+
+# Check upcasting (it is trivial but still). 
+gdb_test "print * (A *) b" ".* = {a = 42}" \
+    "cast derived class pointer to base class pointer"
+
+# Casting References.
+# Check upcasting. 
+gdb_test "print (A &) br" ".* = .A &.* {a = 42}" \
+    "cast derived class reference to base class reference"
+
+# Check downcasting.
+gdb_test "print (B &) ar" ".* = .B.* {<A> = {a = 42}, b = 1729}" \
+    "cast base class reference to derived class reference"
+
+# Check compiler casting
+gdb_test "print br" ".* = .B.* {<A> = {a = 42}, b = 1729}" \
+    "let compiler cast base class reference to derived class reference"