1 files changed, 70 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc b/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc
new file mode 100644
index 000000000..450382c3c
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc
@@ -0,0 +1,70 @@
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <vector> 
+#include <numeric>
+
+class NaturalParameters
+{
+public:
+
+  NaturalParameters()
+  : m_data(2)
+  {  }
+
+  std::vector<double>::const_iterator
+  begin() const
+  { return m_data.begin(); }
+
+  std::vector<double>::const_iterator
+  end() const
+  { return m_data.begin(); }
+
+  NaturalParameters& 
+  operator+=(const NaturalParameters&)
+  { return *this; }
+
+private:
+  std::vector<double> m_data;
+};
+
+inline
+NaturalParameters
+operator+(const NaturalParameters& a, const NaturalParameters& b)
+{
+  NaturalParameters tmp = a;
+  return tmp += b;
+}
+
+// libstdc++/48750
+void test01()
+{
+  // Used to fail in parallel-mode with a segfault.
+  for (std::size_t i = 0; i < 1000; ++i)
+    {
+      std::vector<NaturalParameters> ChildrenNP(1000);
+      NaturalParameters init;
+      NaturalParameters NP = std::accumulate(ChildrenNP.begin(),
+					     ChildrenNP.end(), init); 
+    }
+}
+
+int main()
+{
+  test01();
+  return 0;    
+}