* gdb.cp/class2.cc (empty): New class.

(refer): New function.
        (main): Declare an object of type empty and use it.
        * gdb.cp/class2.exp: Print the value of an object of type empty.

gdb/testsuite/ChangeLog

@@ -1,3 +1,10 @@
+2004-02-26  J. Brobecker  <brobecker@gnat.com>
+
+	* gdb.cp/class2.cc (empty): New class.
+	(refer): New function.
+	(main): Declare an object of type empty and use it.
+	* gdb.cp/class2.exp: Print the value of an object of type empty.
+
 2004-02-26  Jeff Johnston  <jjohnstn@redhat.com>
 
 	* gdb.base/langs.exp: Update query string to match the

gdb/testsuite/gdb.cp/class2.cc

@@ -48,10 +48,19 @@ void refer (A *)
   ;
 }
 
+struct empty {};
+
+// Stop the compiler from optimizing away data.
+void refer (empty *)
+{
+  ;
+}
+
 int main (void)
 {
   A alpha, *aap, *abp;
   B beta, *bbp;
+  empty e;
 
   alpha.a1 = 100;
   beta.a1 = 200; beta.b1 = 201; beta.b2 = 202;
@@ -59,6 +68,7 @@ int main (void)
   aap = α refer (aap);
   abp = β  refer (abp);
   bbp = β  refer (bbp);
+  refer (&e);
 
   return 0;  // marker return 0
 } // marker close brace

gdb/testsuite/gdb.cp/class2.exp

@@ -1,4 +1,4 @@
-# Copyright 2003 Free Software Foundation, Inc.
+# Copyright 2003, 2004 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -113,3 +113,7 @@ gdb_test_multiple "print * abp" "print * abp at marker return 0, s-p-o off" {
 gdb_test "print * (B *) abp" \
     "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
     "print * (B *) abp at marker return 0"
+
+# Printing the value of an object containing no data fields:
+
+gdb_test "p e" "= \{<No data fields>\}" "print object with no data fields"