re PR c++/4476 (g++ does not parse the definition of friend function within a class properly)

cp:
	PR g++/4476
	* typeck2.c (abstract_virtuals_error): Ignore incomplete classes.
testsuite:
	PR g++/4476
	* g++.dg/other/friend1.C: New test.

From-SVN: r46226

gcc/cp/ChangeLog

+2001-10-12  Nathan Sidwell  <nathan@codesourcery.com>
+
+	PR g++/4476
+	* typeck2.c (abstract_virtuals_error): Ignore incomplete classes.
+
 2001-10-11  Jason Merrill  <jason_merrill@redhat.com>
 
 	* typeck2.c (store_init_value): Don't re-digest a bracketed

gcc/cp/typeck2.c

@@ -140,6 +140,11 @@ abstract_virtuals_error (decl, type)
   if (!CLASS_TYPE_P (type) || !CLASSTYPE_PURE_VIRTUALS (type))
     return 0;
 
+  if (!TYPE_SIZE (type))
+    /* TYPE is being defined, and during that time
+       CLASSTYPE_PURE_VIRTUALS holds the inline friends.  */
+    return 0;
+
   u = CLASSTYPE_PURE_VIRTUALS (type);
   if (decl)
     {

gcc/testsuite/ChangeLog

+2001-10-12  Nathan Sidwell  <nathan@codesourcery.com>
+
+	PR g++/4476
+	* g++.dg/other/friend1.C: New test.
+
 2001-10-11  Richard Henderson  <rth@redhat.com>
 
 	* g++.old-deja/g++.other/crash18.C: Add -S to options.

gcc/testsuite/g++.dg/other/friend1.C

+// { dg-do compile }
+
+// Copyright (C) 2001 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 10 Oct 2001 <nathan@codesourcery.com>
+
+// Bug 4476. We tangled up inline friends and pure virtuals during
+// class definition.
+
+struct A {
+  friend void f () { }
+  void g (A a) {  }
+};