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diff --git a/ext/drampower/src/Utils.h b/ext/drampower/src/Utils.h
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+++ b/ext/drampower/src/Utils.h
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+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2014, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Andreas Hansson
+ *
+ */
+
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <string>
+#include <sstream>
+#include <stdexcept>
+#include <typeinfo>
+
+#define MILLION 1000000
+
+template<typename T>
+T fromString(const std::string& s,
+             std::ios_base& (*f)(std::ios_base &) = std::dec)
+throw(std::runtime_error)
+{
+  std::istringstream is(s);
+  T t;
+
+  if (!(is >> f >> t)) {
+    throw std::runtime_error("Cannot convert '" + s + "' to " +
+                             typeid(t).name() + " using fromString");
+  }
+
+  return t;
+}
+
+#endif /* UTILS_H */