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+/* boost random/uniform_real.hpp header file
+ *
+ * Copyright Jens Maurer 2000-2001
+ * Distributed under the Boost Software License, Version 1.0. (See
+ * accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * See http://www.boost.org for most recent version including documentation.
+ *
+ * $Id: uniform_real.hpp 60755 2010-03-22 00:45:06Z steven_watanabe $
+ *
+ * Revision history
+ *  2001-04-08  added min<max assertion (N. Becker)
+ *  2001-02-18  moved to individual header files
+ */
+
+#ifndef BOOST_RANDOM_UNIFORM_REAL_HPP
+#define BOOST_RANDOM_UNIFORM_REAL_HPP
+
+#include <cassert>
+#include <iostream>
+#include <boost/config.hpp>
+#include <boost/limits.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/random/detail/config.hpp>
+
+namespace boost {
+
+/**
+ * The distribution function uniform_real models a random distribution.
+ * On each invocation, it returns a random floating-point value uniformly
+ * distributed in the range [min..max). The value is computed using
+ * std::numeric_limits<RealType>::digits random binary digits, i.e.
+ * the mantissa of the floating-point value is completely filled with
+ * random bits.
+ *
+ * Note: The current implementation is buggy, because it may not fill
+ * all of the mantissa with random bits.
+ */
+template<class RealType = double>
+class uniform_real
+{
+public:
+  typedef RealType input_type;
+  typedef RealType result_type;
+
+  /**
+   * Constructs a uniform_real object. @c min and @c max are the
+   * parameters of the distribution.
+   *
+   * Requires: min <= max
+   */
+  explicit uniform_real(RealType min_arg = RealType(0),
+                        RealType max_arg = RealType(1))
+    : _min(min_arg), _max(max_arg)
+  {
+#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+    BOOST_STATIC_ASSERT(!std::numeric_limits<RealType>::is_integer);
+#endif
+    assert(min_arg <= max_arg);
+  }
+
+  // compiler-generated copy ctor and assignment operator are fine
+
+  /**
+   * Returns: The "min" parameter of the distribution
+   */
+  result_type min BOOST_PREVENT_MACRO_SUBSTITUTION () const { return _min; }
+  /**
+   * Returns: The "max" parameter of the distribution
+   */
+  result_type max BOOST_PREVENT_MACRO_SUBSTITUTION () const { return _max; }
+  void reset() { }
+
+  template<class Engine>
+  result_type operator()(Engine& eng) {
+    result_type numerator = static_cast<result_type>(eng() - eng.min BOOST_PREVENT_MACRO_SUBSTITUTION());
+    result_type divisor = static_cast<result_type>(eng.max BOOST_PREVENT_MACRO_SUBSTITUTION() - eng.min BOOST_PREVENT_MACRO_SUBSTITUTION());
+    assert(divisor > 0);
+    assert(numerator >= 0 && numerator <= divisor);
+    return numerator / divisor * (_max - _min) + _min;
+  }
+
+#ifndef BOOST_RANDOM_NO_STREAM_OPERATORS
+  template<class CharT, class Traits>
+  friend std::basic_ostream<CharT,Traits>&
+  operator<<(std::basic_ostream<CharT,Traits>& os, const uniform_real& ud)
+  {
+    os << ud._min << " " << ud._max;
+    return os;
+  }
+
+  template<class CharT, class Traits>
+  friend std::basic_istream<CharT,Traits>&
+  operator>>(std::basic_istream<CharT,Traits>& is, uniform_real& ud)
+  {
+    is >> std::ws >> ud._min >> std::ws >> ud._max;
+    return is;
+  }
+#endif
+
+private:
+  RealType _min, _max;
+};
+
+} // namespace boost
+
+#endif // BOOST_RANDOM_UNIFORM_REAL_HPP