From 5b69f8a28ada5bde3623a551292dc879031d6517 Mon Sep 17 00:00:00 2001
From: Kriang Lerdsuwanakij <lerdsuwa@users.sourceforge.net>
Date: Mon, 24 Feb 2003 15:29:29 +0000
Subject: [PATCH] re PR c++/9602 (Total confusion about
 template/friend/virtual/abstract)

	PR c++/9602
	* typeck2.c (abstract_virtuals_error): Don't check when we
	are processing a template.

	* g++.dg/template/friend16.C: New test.

From-SVN: r63361
---
 gcc/cp/ChangeLog                         |  6 ++++++
 gcc/cp/typeck2.c                         |  6 ++++++
 gcc/testsuite/ChangeLog                  |  5 +++++
 gcc/testsuite/g++.dg/template/friend16.C | 16 ++++++++++++++++
 4 files changed, 33 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/template/friend16.C

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a3df8915464f..6c0c6ef21c2c 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2003-02-24  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
+
+	PR c++/9602
+	* typeck2.c (abstract_virtuals_error): Don't check when we
+	are processing a template.
+
 2003-02-23  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
 
 	PR c++/7982
diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index f8e612bf6a87..4e1acc4bebf2 100644
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -133,6 +133,12 @@ abstract_virtuals_error (decl, type)
   tree u;
   tree tu;
 
+  if (processing_template_decl)
+    /* If we are processing a template, TYPE may be a template
+       class where CLASSTYPE_PURE_VIRTUALS always contains
+       inline friends.  */
+    return 0;
+
   if (!CLASS_TYPE_P (type) || !CLASSTYPE_PURE_VIRTUALS (type))
     return 0;
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e6ee0b96f78a..88dcd59be16f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2003-02-24  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
+
+	PR c++/9602
+	* g++.dg/template/friend16.C: New test.
+
 2003-02-23  Hans-Peter Nilsson  <hp@axis.com>
 
 	* gcc.dg/asmreg-1.c: New test.
diff --git a/gcc/testsuite/g++.dg/template/friend16.C b/gcc/testsuite/g++.dg/template/friend16.C
new file mode 100644
index 000000000000..3165ed2b59d8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/friend16.C
@@ -0,0 +1,16 @@
+// { dg-do compile }
+
+// Origin: Wolfgang Bangerth <bangerth@ticam.utexas.edu>
+
+// PR c++/9602: Inline friend/pure virtual tree data sharing in
+// class template.
+
+template <typename T> struct X {
+  void foo (X);
+  friend void bar () {}
+};
+    
+template <typename T>
+void X<T>::foo (X x) {}
+    
+template struct X<int>;
-- 
2.47.2