--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/random/linear_feedback_shift.hpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,145 @@
+/* boost random/tausworthe.hpp header file
+ *
+ * Copyright Jens Maurer 2002
+ * 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: linear_feedback_shift.hpp,v 1.12 2005/05/21 15:57:00 dgregor Exp $
+ *
+ */
+
+#ifndef BOOST_RANDOM_LINEAR_FEEDBACK_SHIFT_HPP
+#define BOOST_RANDOM_LINEAR_FEEDBACK_SHIFT_HPP
+
+#include <iostream>
+#include <cassert>
+#include <stdexcept>
+#include <boost/config.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/limits.hpp>
+
+namespace boost {
+namespace random {
+
+// Tausworte 1965
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+class linear_feedback_shift
+{
+public:
+  typedef UIntType result_type;
+  // avoid the warning trouble when using (1<<w) on 32 bit machines
+  BOOST_STATIC_CONSTANT(bool, has_fixed_range = false);
+  BOOST_STATIC_CONSTANT(int, word_size = w);
+  BOOST_STATIC_CONSTANT(int, exponent1 = k);
+  BOOST_STATIC_CONSTANT(int, exponent2 = q);
+  BOOST_STATIC_CONSTANT(int, step_size = s);
+
+  result_type min BOOST_PREVENT_MACRO_SUBSTITUTION () const { return 0; }
+  result_type max BOOST_PREVENT_MACRO_SUBSTITUTION () const { return wordmask; }
+
+  // MSVC 6 and possibly others crash when encountering complicated integral
+  // constant expressions.  Avoid the checks for now.
+  // BOOST_STATIC_ASSERT(w > 0);
+  // BOOST_STATIC_ASSERT(q > 0);
+  // BOOST_STATIC_ASSERT(k < w);
+  // BOOST_STATIC_ASSERT(0 < 2*q && 2*q < k);
+  // BOOST_STATIC_ASSERT(0 < s && s <= k-q);
+
+  explicit linear_feedback_shift(UIntType s0 = 341) : wordmask(0)
+  {
+    // MSVC fails BOOST_STATIC_ASSERT with std::numeric_limits at class scope
+#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+    BOOST_STATIC_ASSERT(std::numeric_limits<UIntType>::is_integer);
+    BOOST_STATIC_ASSERT(!std::numeric_limits<UIntType>::is_signed);
+#endif
+
+    // avoid "left shift count >= with of type" warning
+    for(int i = 0; i < w; ++i)
+      wordmask |= (1u << i);
+    seed(s0);
+  }
+
+  template<class It> linear_feedback_shift(It& first, It last) : wordmask(0)
+  {
+    // MSVC fails BOOST_STATIC_ASSERT with std::numeric_limits at class scope
+#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+    BOOST_STATIC_ASSERT(std::numeric_limits<UIntType>::is_integer);
+    BOOST_STATIC_ASSERT(!std::numeric_limits<UIntType>::is_signed);
+#endif
+
+    // avoid "left shift count >= with of type" warning
+    for(int i = 0; i < w; ++i)
+      wordmask |= (1u << i);
+    seed(first, last);
+  }
+
+  void seed(UIntType s0 = 341) { assert(s0 >= (1 << (w-k))); value = s0; }
+  template<class It> void seed(It& first, It last)
+  {
+    if(first == last)
+      throw std::invalid_argument("linear_feedback_shift::seed");
+    value = *first++;
+    assert(value >= (1 << (w-k)));
+  }
+
+  result_type operator()()
+  {
+    const UIntType b = (((value << q) ^ value) & wordmask) >> (k-s);
+    const UIntType mask = ( (~static_cast<UIntType>(0)) << (w-k) ) & wordmask;
+    value = ((value & mask) << s) ^ b;
+    return value;
+  }
+  bool validation(result_type x) const { return val == x; }
+
+#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
+
+#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+  template<class CharT, class Traits>
+  friend std::basic_ostream<CharT,Traits>&
+  operator<<(std::basic_ostream<CharT,Traits>& os, linear_feedback_shift x)
+  { os << x.value; return os; }
+
+  template<class CharT, class Traits>
+  friend std::basic_istream<CharT,Traits>&
+  operator>>(std::basic_istream<CharT,Traits>& is, linear_feedback_shift& x)
+  { is >> x.value; return is; }
+#endif
+
+  friend bool operator==(linear_feedback_shift x, linear_feedback_shift y)
+  { return x.value == y.value; }
+  friend bool operator!=(linear_feedback_shift x, linear_feedback_shift y)
+  { return !(x == y); }
+#else
+  // Use a member function; Streamable concept not supported.
+  bool operator==(linear_feedback_shift rhs) const
+  { return value == rhs.value; }
+  bool operator!=(linear_feedback_shift rhs) const
+  { return !(*this == rhs); }
+#endif
+
+private:
+  UIntType wordmask; // avoid "left shift count >= width of type" warnings
+  UIntType value;
+};
+
+#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+//  A definition is required even for integral static constants
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+const bool linear_feedback_shift<UIntType, w, k, q, s, val>::has_fixed_range;
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+const int linear_feedback_shift<UIntType, w, k, q, s, val>::word_size;
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+const int linear_feedback_shift<UIntType, w, k, q, s, val>::exponent1;
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+const int linear_feedback_shift<UIntType, w, k, q, s, val>::exponent2;
+template<class UIntType, int w, int k, int q, int s, UIntType val>
+const int linear_feedback_shift<UIntType, w, k, q, s, val>::step_size;
+#endif
+
+} // namespace random
+} // namespace boost
+
+#endif // BOOST_RANDOM_LINEAR_FEEDBACK_SHIFT_HPP