--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/random/bernoulli_distribution.hpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,80 @@
+/* boost random/bernoulli_distribution.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: bernoulli_distribution.hpp,v 1.19 2004/07/27 03:43:32 dgregor Exp $
+ *
+ * Revision history
+ *  2001-02-18  moved to individual header files
+ */
+
+#ifndef BOOST_RANDOM_BERNOULLI_DISTRIBUTION_HPP
+#define BOOST_RANDOM_BERNOULLI_DISTRIBUTION_HPP
+
+#include <cassert>
+#include <iostream>
+
+namespace boost {
+
+// Bernoulli distribution: p(true) = p, p(false) = 1-p   (boolean)
+template<class RealType = double>
+class bernoulli_distribution
+{
+public:
+  // In principle, this could work with both integer and floating-point
+  // types.  Generating floating-point random numbers in the first
+  // place is probably more expensive, so use integer as input.
+  typedef int input_type;
+  typedef bool result_type;
+
+  explicit bernoulli_distribution(const RealType& p = RealType(0.5)) 
+    : _p(p)
+  {
+    assert(p >= 0);
+    assert(p <= 1);
+  }
+
+  // compiler-generated copy ctor and assignment operator are fine
+
+  RealType p() const { return _p; }
+  void reset() { }
+
+  template<class Engine>
+  result_type operator()(Engine& eng)
+  {
+    if(_p == RealType(0))
+      return false;
+    else
+      return RealType(eng() - (eng.min)()) <= _p * RealType((eng.max)()-(eng.min)());
+  }
+
+#if !defined(BOOST_NO_OPERATORS_IN_NAMESPACE) && !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
+  template<class CharT, class Traits>
+  friend std::basic_ostream<CharT,Traits>&
+  operator<<(std::basic_ostream<CharT,Traits>& os, const bernoulli_distribution& bd)
+  {
+    os << bd._p;
+    return os;
+  }
+
+  template<class CharT, class Traits>
+  friend std::basic_istream<CharT,Traits>&
+  operator>>(std::basic_istream<CharT,Traits>& is, bernoulli_distribution& bd)
+  {
+    is >> std::ws >> bd._p;
+    return is;
+  }
+#endif
+
+private:
+  RealType _p;
+};
+
+} // namespace boost
+
+#endif // BOOST_RANDOM_BERNOULLI_DISTRIBUTION_HPP