re PR c++/17435 (Binding a temporary of derived type to reference of base)

PR c++/17435
	* call.c (convert_like_real): Fix formatting.
	(initialize_reference): When binding a temporary to a base class,
	ensure that the nominal copy made is to the derived class, not the
	base class.

	PR c++/18140
	* parser.c (cp_parser_next_token_ends_template_argument_p): Do not
	include ">>".

	PR c++/17435
	* g++.dg/init/ref12.C: New test.

	PR c++/18140
	* g++.dg/template/shift1.C: New test.
	* g++.dg/template/error10.C: Adjust error markers.

From-SVN: r89738

gcc/cp/ChangeLog

@@ -1,3 +1,15 @@
+2004-10-27  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/17435
+	* call.c (convert_like_real): Fix formatting.
+	(initialize_reference): When binding a temporary to a base class,
+	ensure that the nominal copy made is to the derived class, not the
+	base class.
+
+	PR c++/18140
+	* parser.c (cp_parser_next_token_ends_template_argument_p): Do not
+	include ">>".
+
 2004-10-27  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	* decl.c: Move the q after the %.

gcc/cp/call.c

@@ -4239,7 +4239,7 @@ convert_like_real (conversion *convs, tree expr, tree fn, int argnum,
 	expr = decl_constant_value (expr);
       if (convs->check_copy_constructor_p)
 	check_constructor_callable (totype, expr);
-	return expr;
+      return expr;
     case ck_ambig:
       /* Call build_user_type_conversion again for the error.  */
       return build_user_type_conversion
@@ -6467,7 +6467,7 @@ initialize_reference (tree type, tree expr, tree decl, tree *cleanup)
       conv = conv->u.next;
       /* If the next conversion is a BASE_CONV, skip that too -- but
 	 remember that the conversion was required.  */
-      if (conv->kind == ck_base && conv->need_temporary_p)
+      if (conv->kind == ck_base)
 	{
 	  if (conv->check_copy_constructor_p)
  	    check_constructor_callable (TREE_TYPE (expr), expr);
@@ -6537,6 +6537,11 @@ initialize_reference (tree type, tree expr, tree decl, tree *cleanup)
 	    }
 	  /* Use its address to initialize the reference variable.  */
 	  expr = build_address (var);
+	  if (base_conv_type)
+	    expr = convert_to_base (expr, 
+				    build_pointer_type (base_conv_type),
+				    /*check_access=*/true,
+				    /*nonnull=*/true);
 	  expr = build2 (COMPOUND_EXPR, TREE_TYPE (expr), init, expr);
 	}
       else

gcc/cp/parser.c

@@ -15474,9 +15474,7 @@ cp_parser_next_token_starts_class_definition_p (cp_parser *parser)
 }
 
 /* Returns TRUE iff the next token is the "," or ">" ending a
-   template-argument. ">>" is also accepted (after the full
+   template-argument.   */
-   argument was parsed) because it's probably a typo for "> >",
-   and there is a specific diagnostic for this.  */
 
 static bool
 cp_parser_next_token_ends_template_argument_p (cp_parser *parser)
@@ -15484,8 +15482,7 @@ cp_parser_next_token_ends_template_argument_p (cp_parser *parser)
   cp_token *token;
 
   token = cp_lexer_peek_token (parser->lexer);
-  return (token->type == CPP_COMMA || token->type == CPP_GREATER
+  return (token->type == CPP_COMMA || token->type == CPP_GREATER);
-	  || token->type == CPP_RSHIFT);
 }
 
 /* Returns TRUE iff the n-th token is a ">", or the n-th is a "[" and the

gcc/testsuite/ChangeLog

@@ -1,3 +1,12 @@
+2004-10-27  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/17435
+	* g++.dg/init/ref12.C: New test.
+
+	PR c++/18140
+	* g++.dg/template/shift1.C: New test.
+	* g++.dg/template/error10.C: Adjust error markers.
+
 2004-10-27  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR tree-opt/17529

gcc/testsuite/g++.dg/init/ref12.C

@@ -0,0 +1,29 @@
+// PR c++/17435
+
+extern "C" void abort ();
+
+bool ok;
+ 
+struct A  
+{ 
+  void func() const 
+  { 
+    ok = 1;
+  } 
+  
+  ~A() 
+  { 
+    if (!ok)
+      abort ();
+  } 
+}; 
+
+struct B : public A  
+{ 
+}; 
+ 
+int main() 
+{ 
+  A const& r1 = B(); 
+  r1.func(); 
+} 

gcc/testsuite/g++.dg/template/error10.C

@@ -66,5 +66,5 @@ struct K {};
 
 void KFunc(void);
 
-A<K<&KFunc>> k1;  // { dg-error "should be '> >' within" }
+A<K<&KFunc>> k1;  // { dg-error "" }
-K<&KFunc>> k2; // { dg-error "spurious '>>'" }
+K<&KFunc>> k2; // { dg-error "" }

gcc/testsuite/g++.dg/template/shift1.C

@@ -0,0 +1,10 @@
+// PR c++/18140
+
+template <int N> struct IntHolder {
+  static const int value = N;
+};
+
+template <int N, int S> struct ShrIntHolder {
+  static const int value = IntHolder< N>>S >::value;
+};
+