Subject: [Boost-commit] svn:boost r57328 - sandbox/statistics/detail/math/boost/statistics/detail/math/constant
From: erwann.rogard_at_[hidden]
Date: 2009-11-03 11:55:25
Author: e_r
Date: 2009-11-03 11:55:25 EST (Tue, 03 Nov 2009)
New Revision: 57328
URL: http://svn.boost.org/trac/boost/changeset/57328
Log:
a
Added:
sandbox/statistics/detail/math/boost/statistics/detail/math/constant/
sandbox/statistics/detail/math/boost/statistics/detail/math/constant/shortcut.hpp (contents, props changed)
Added: sandbox/statistics/detail/math/boost/statistics/detail/math/constant/shortcut.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/detail/math/boost/statistics/detail/math/constant/shortcut.hpp 2009-11-03 11:55:25 EST (Tue, 03 Nov 2009)
@@ -0,0 +1,103 @@
+///////////////////////////////////////////////////////////////////////////////
+// math::shortcut::shortcut.hpp //
+// //
+// Copyright 2009 Erwann Rogard. 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) //
+///////////////////////////////////////////////////////////////////////////////
+#ifndef BOOST_STATISTICS_DETAIL_MATH_CONSTANT_SHORTCUT_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_MATH_CONSTANT_SHORTCUT_HPP_ER_2009
+#include <limits>
+#include <iostream>
+#include <boost/mpl/bool.hpp>
+#include <boost/numeric/conversion/converter.hpp>
+#include <boost/math/tools/precision.hpp>
+#include <boost/numeric/conversion/bounds.hpp>
+#include <boost/type_traits.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace math{
+namespace constant{
+
+ template<typename T>
+ class shortcut{
+ public:
+ typedef boost::numeric::converter<T,unsigned> conv_t;
+ typedef boost::numeric::bounds<T> bounds_;
+
+ static const T zero;
+ static const T eps;
+ static const T one;
+ static const T two;
+ static const T lmin; //exp(lmin_)>eps
+ static const T lmax; //exp(lmax_)<inf
+ static const T inf;
+ static const T highest;
+ static const T low;
+ static const T has_inf;
+ static const T inf_else_highest;
+ static const T quiet_nan;
+ static const T sig_nan;
+
+ private:
+ static T inf_else_highest_impl(boost::mpl::bool_<true>)
+ {
+ return inf;
+ }
+ static T inf_else_highest_impl(boost::mpl::bool_<false>)
+ {
+ return highest;
+ }
+
+
+ };
+
+ template<typename T>
+ const T shortcut<T>::has_inf = std::numeric_limits<T>::has_infinity;
+
+ template<typename T>
+ const T shortcut<T>::zero = conv_t::convert(0);
+
+ template<typename T>
+ const T shortcut<T>::eps = boost::math::tools::epsilon<T>();
+
+ template<typename T>
+ const T shortcut<T>::one = conv_t::convert(1);
+
+ template<typename T>
+ const T shortcut<T>::two = conv_t::convert(2);
+
+ template<typename T>
+ const T shortcut<T>::highest = shortcut<T>::bounds_::highest();
+
+ template<typename T>
+ const T shortcut<T>::low = shortcut<T>::bounds_::lowest();
+
+ template<typename T>
+ const T shortcut<T>::lmin = boost::math::tools::log_min_value<T>();
+
+ template<typename T>
+ const T shortcut<T>::lmax = boost::math::tools::log_max_value<T>();
+
+ template<typename T>
+ const T shortcut<T>::inf = std::numeric_limits<T>::infinity();
+
+ template<typename T>
+ const T shortcut<T>::quiet_nan = std::numeric_limits<T>::quiet_NaN();
+
+ template<typename T>
+ const T shortcut<T>::sig_nan = std::numeric_limits<T>::signaling_NaN();
+
+ template<typename T>
+ const T shortcut<T>::inf_else_highest
+ = (shortcut<T>::has_inf) ? shortcut<T>::inf : shortcut<T>::highest;
+
+}// constant
+}// math
+}// detail
+}// statistics
+}// boost
+
+#endif