Blame SOURCES/gcc48-pr69116.patch

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2016-02-10  Jonathan Wakely  <jwakely@redhat.com>
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	PR libstdc++/69116
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	* include/bits/valarray_before.h (__fun, __fun_with_valarray): Only
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	define result_type for types which can be safely used with valarrays.
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	* testsuite/26_numerics/valarray/69116.cc: New.
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--- libstdc++-v3/include/bits/valarray_before.h	(revision 233264)
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+++ libstdc++-v3/include/bits/valarray_before.h	(revision 233265)
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@@ -331,14 +331,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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       { return pow(__x, __y); }
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   };
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+  template<typename _Tp, bool _IsValidValarrayValue = !__is_abstract(_Tp)>
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+    struct __fun_with_valarray
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+    {
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+      typedef _Tp result_type;
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+    };
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+
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+  template<typename _Tp>
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+    struct __fun_with_valarray<_Tp, false>
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+    {
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+      // No result type defined for invalid value types.
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+    };
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   // We need these bits in order to recover the return type of
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   // some functions/operators now that we're no longer using
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   // function templates.
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   template<typename, typename _Tp>
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-    struct __fun
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+    struct __fun : __fun_with_valarray<_Tp>
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     {
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-      typedef _Tp result_type;
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     };
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   // several specializations for relational operators.
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--- libstdc++-v3/testsuite/26_numerics/valarray/69116.cc	(nonexistent)
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+++ libstdc++-v3/testsuite/26_numerics/valarray/69116.cc	(revision 233265)
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@@ -0,0 +1,53 @@
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+// Copyright (C) 2016 Free Software Foundation, Inc.
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+//
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+// This file is part of the GNU ISO C++ Library.  This library is free
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+// software; you can redistribute it and/or modify it under the
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+// terms of the GNU General Public License as published by the
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+// Free Software Foundation; either version 3, or (at your option)
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+// any later version.
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+
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+// This library is distributed in the hope that it will be useful,
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+// but WITHOUT ANY WARRANTY; without even the implied warranty of
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+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+// GNU General Public License for more details.
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+
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+// You should have received a copy of the GNU General Public License along
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+// with this library; see the file COPYING3.  If not see
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+// <http://www.gnu.org/licenses/>.
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+
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+// { dg-do compile }
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+// { dg-options "-std=gnu++98" }
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+
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+// libstdc++/69116
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+
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+#include <exception>
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+#include <valarray>
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+
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+template<typename T>
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+  void foo(const T&) { }
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+
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+struct X : std::exception // makes namespace std an associated namespace
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+{
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+  virtual void pure() = 0;
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+
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+  typedef void(*func_type)(const X&);
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+
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+  void operator+(func_type) const;
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+  void operator-(func_type) const;
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+  void operator*(func_type) const;
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+  void operator/(func_type) const;
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+  void operator%(func_type) const;
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+  void operator<<(func_type) const;
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+  void operator>>(func_type) const;
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+};
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+
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+void foo(X& x)
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+{
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+  x + foo;
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+  x - foo;
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+  x * foo;
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+  x / foo;
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+  x % foo;
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+  x << foo;
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+  x >> foo;
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+}