--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/stdapis/boost/random/cauchy_distribution.hpp	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,89 @@
+/* boost random/cauchy_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: cauchy_distribution.hpp,v 1.15 2004/07/27 03:43:32 dgregor Exp $
+ *
+ * Revision history
+ *  2001-02-18  moved to individual header files
+ */
+
+#ifndef BOOST_RANDOM_CAUCHY_DISTRIBUTION_HPP
+#define BOOST_RANDOM_CAUCHY_DISTRIBUTION_HPP
+
+#include <cmath>
+#include <iostream>
+#include <boost/limits.hpp>
+#include <boost/static_assert.hpp>
+
+namespace boost {
+
+#if defined(__GNUC__) && (__GNUC__ < 3)
+// Special gcc workaround: gcc 2.95.x ignores using-declarations
+// in template classes (confirmed by gcc author Martin v. Loewis)
+  using std::tan;
+#endif
+
+// Cauchy distribution: p(x) = sigma/(pi*(sigma**2 + (x-median)**2))
+template<class RealType = double>
+class cauchy_distribution
+{
+public:
+  typedef RealType input_type;
+  typedef RealType result_type;
+
+#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+  BOOST_STATIC_ASSERT(!std::numeric_limits<RealType>::is_integer);
+#endif
+
+  explicit cauchy_distribution(result_type median = result_type(0), 
+                               result_type sigma = result_type(1))
+    : _median(median), _sigma(sigma) { }
+
+  // compiler-generated copy ctor and assignment operator are fine
+
+  result_type median() const { return _median; }
+  result_type sigma() const { return _sigma; }
+  void reset() { }
+
+  template<class Engine>
+  result_type operator()(Engine& eng)
+  {
+    // Can we have a boost::mathconst please?
+    const result_type pi = result_type(3.14159265358979323846);
+#ifndef BOOST_NO_STDC_NAMESPACE
+    using std::tan;
+#endif
+    return _median + _sigma * tan(pi*(eng()-result_type(0.5)));
+  }
+
+#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 cauchy_distribution& cd)
+  {
+    os << cd._median << " " << cd._sigma;
+    return os;
+  }
+
+  template<class CharT, class Traits>
+  friend std::basic_istream<CharT,Traits>&
+  operator>>(std::basic_istream<CharT,Traits>& is, cauchy_distribution& cd)
+  {
+    is >> std::ws >> cd._median >> std::ws >> cd._sigma;
+    return is;
+  }
+#endif
+
+private:
+  result_type _median, _sigma;
+};
+
+} // namespace boost
+
+#endif // BOOST_RANDOM_CAUCHY_DISTRIBUTION_HPP