decl.c (lookup_name_real): Set the complain flag if we're looking for a namespace member.

* decl.c (lookup_name_real): Set the complain flag if we're
	looking for a namespace member.

	* lex.c (real_yylex): We can have a number with no digits.

	* cvt.c (cp_convert_to_pointer): Don't force pmf conversions.

	* search.c (binfo_from_vbase): New fn.
	* cp-tree.h: Declare it.
	* cvt.c (cp_convert_to_pointer): Use it to diagnose conversion
	from pointer to member of virtual base.
	* typeck.c (get_delta_difference): Likewise.

From-SVN: r28560

gcc/cp/ChangeLog

@@ -1,3 +1,18 @@
+1999-08-06  Jason Merrill  <jason@yorick.cygnus.com>
+
+	* decl.c (lookup_name_real): Set the complain flag if we're
+	looking for a namespace member.
+
+	* lex.c (real_yylex): We can have a number with no digits.
+
+	* cvt.c (cp_convert_to_pointer): Don't force pmf conversions.
+
+	* search.c (binfo_from_vbase): New fn.
+	* cp-tree.h: Declare it.
+	* cvt.c (cp_convert_to_pointer): Use it to diagnose conversion
+	from pointer to member of virtual base.  
+	* typeck.c (get_delta_difference): Likewise.
+
 1999-08-06  Alexandre Oliva  <oliva@dcc.unicamp.br>
 
 	* pt.c (tsubst): Use build_index_type to build in-template array

gcc/cp/cp-tree.h

@@ -3343,6 +3343,7 @@ extern void reinit_search_statistics		PROTO((void));
 extern tree current_scope			PROTO((void));
 extern tree lookup_conversions			PROTO((tree));
 extern tree binfo_for_vtable			PROTO((tree));
+extern int  binfo_from_vbase			PROTO((tree));
 extern tree dfs_walk                            PROTO((tree, 
 						       tree (*)(tree, void *),
 						       tree (*) (tree, void *),

gcc/cp/cvt.c

@@ -1,5 +1,5 @@
 /* Language-level data type conversion for GNU C++.
-   Copyright (C) 1987, 88, 92-97, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1987-1988, 1992-1999 Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
 This file is part of GNU CC.
@@ -199,6 +199,13 @@ cp_convert_to_pointer (type, expr)
 	  if (binfo == error_mark_node)
 	    return error_mark_node;
 
+	  if (binfo_from_vbase (binfo))
+	    {
+	      cp_error ("conversion to `%T' from pointer to member of virtual base `%T'",
+			type, intype);
+	      return error_mark_node;
+	    }
+	      
 	  if (TREE_CODE (expr) == PTRMEM_CST)
 	    expr = cplus_expand_constant (expr);
 
@@ -217,7 +224,7 @@ cp_convert_to_pointer (type, expr)
       return rval;
     }
   else if (TYPE_PTRMEMFUNC_P (type) && TYPE_PTRMEMFUNC_P (intype))
-    return build_ptrmemfunc (TYPE_PTRMEMFUNC_FN_TYPE (type), expr, 1);
+    return build_ptrmemfunc (TYPE_PTRMEMFUNC_FN_TYPE (type), expr, 0);
   else if (TYPE_PTRMEMFUNC_P (intype))
     {
       cp_error ("cannot convert `%E' from type `%T' to type `%T'",

gcc/cp/decl.c

@@ -5707,6 +5707,7 @@ lookup_name_real (name, prefer_type, nonclass, namespaces_only)
 	    {
 	      struct tree_binding b;
 	      val = binding_init (&b);
+	      flags |= LOOKUP_COMPLAIN;
 	      if (!qualified_lookup_using_namespace (name, type, val, flags))
 		return NULL_TREE;
 	      val = select_decl (val, flags);

gcc/cp/decl2.c

@@ -4421,8 +4421,8 @@ lookup_using_namespace (name, val, usings, scope, flags)
 }
 
 /* [namespace.qual]
-   Excepts the name to lookup and its qualifying scope.
-   Returns the name/type pair found into the CPLUS_BINDING result,
+   Accepts the NAME to lookup and its qualifying SCOPE.
+   Returns the name/type pair found into the CPLUS_BINDING RESULT,
    or 0 on error. */
 
 int

gcc/cp/lex.c

@@ -3973,8 +3973,9 @@ real_yylex ()
 	      }
 	  }
 
+	/* This can happen on input like `int i = 0x;' */
 	if (numdigits == 0)
-	  my_friendly_abort (990710);
+	  error ("numeric constant with no digits");
 
 	if (largest_digit >= base)
 	  error ("numeric constant contains digits beyond the radix");

gcc/cp/search.c

@@ -3315,3 +3315,17 @@ binfo_for_vtable (var)
   return dfs_walk_real (TYPE_BINFO (type),
 			0, dfs_bfv_helper, dfs_bfv_queue_p, &bfvi);
 }
+
+/* Returns 1 iff BINFO is from a direct or indirect virtual base.  */
+
+int
+binfo_from_vbase (binfo)
+     tree binfo;
+{
+  for (; binfo; binfo = BINFO_INHERITANCE_CHAIN (binfo))
+    {
+      if (TREE_VIA_VIRTUAL (binfo))
+	return 1;
+    }
+  return 0;
+}

gcc/cp/typeck.c

@@ -6213,7 +6213,7 @@ get_delta_difference (from, to, force)
       binfo = get_binfo (to, from, 1);
       if (binfo == 0 || binfo == error_mark_node)
 	return delta;
-      if (TREE_VIA_VIRTUAL (binfo))
+      if (binfo_from_vbase (binfo))
 	{
 	  binfo = binfo_member (BINFO_TYPE (binfo),
 				CLASSTYPE_VBASECLASSES (from));
@@ -6229,7 +6229,7 @@ get_delta_difference (from, to, force)
 			      delta);
     }
 
-  if (TREE_VIA_VIRTUAL (binfo))
+  if (binfo_from_vbase (binfo))
     {
       if (force)
 	{