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diff --git a/libstdc++-v3/libprofc++/profiler_container_size.h b/libstdc++-v3/libprofc++/profiler_container_size.h
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+++ b/libstdc++-v3/libprofc++/profiler_container_size.h
@@ -0,0 +1,87 @@
+// -*- C++ -*-
+//
+// Copyright (C) 2008 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 2, 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 COPYING.  If not, write to
+// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+// MA 02111-1307, USA.
+
+// As a special exception, you may use this file as part of a free
+// software library without restriction.  Specifically, if other files
+// instantiate templates or use macros or inline functions from this
+// file, or you compile this file and link it with other files to
+// produce an executable, this file does not by itself cause the
+// resulting executable to be covered by the GNU General Public
+// License.  This exception does not however invalidate any other
+// reasons why the executable file might be covered by the GNU General
+// Public License.
+
+/** @file libprofc++/profiler_trace.h
+ *  @brief Data structures to represent profiling traces.
+ */
+
+// Written by Lixia Liu
+
+#ifndef PROFCXX_PROFILER_CONTAINER_SIZE_H__
+#define PROFCXX_PROFILER_CONTAINER_SIZE_H__ 1
+
+#include "profiler.h"
+#include "profiler_node.h"
+#include "profiler_trace.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+namespace cxxprof_runtime
+{
+long reserve_size();
+
+class trace_container_size
+    : public trace_base<stdlib_info_size*, stdlib_info_size*> 
+{
+ public:
+  trace_container_size() {}
+  ~trace_container_size() {free_all();}
+  trace_container_size(unsigned long size)  
+      : trace_base<stdlib_info_size*, stdlib_info_size*>(size) {};
+
+  // Insert a new node at construct with object, callstack and initial size. 
+  void insert(void* __obj, stack_t* __stack, stdlib_size_t __num);
+  // Call at destruction/clean to set container final size.
+  void destruct(void* __obj, stdlib_size_t __num, stdlib_size_t __inum);
+  void construct(void* __obj, stdlib_size_t __inum);
+  // Call at resize to set resize/cost information.
+  void resize(void* __obj, int __from, int __to);
+  void print();
+  void free_all();
+  // Get stack but return a vector.
+  stack_t* get_stack();
+};
+
+inline void trace_container_size::insert(void* __obj, stack_t* __stack,
+                                  stdlib_size_t __num)
+{
+  ObjMap* live = &trace_info.first;
+
+  // Control the size to be less than reserved size. 
+  if (reserve_size() > 0 && live->size() > reserve_size()) return;
+
+  stdlib_info_size *node = new stdlib_info_size(__obj, __stack, __num);
+  live->insert(ObjMap::value_type(__obj, node));
+}
+
+} // namespace cxxprof_runtime
+#endif /* PROFCXX_PROFILER_CONTAINER_SIZE_H__ */