[Boost-commit] svn:boost r58160 - in sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common: distributions/reference functor

Subject: [Boost-commit] svn:boost r58160 - in sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common: distributions/reference functor
From: erwann.rogard_at_[hidden]
Date: 2009-12-05 20:02:23

Author: e_r
Date: 2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
New Revision: 58160
URL: http://svn.boost.org/trac/boost/changeset/58160

Log:
a
Added:
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/cdf.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/derivative_log_unnormalized_pdf.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/description.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/mean.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/normalizing_constant.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/os.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/pdf.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/random.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/variance.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/cdf.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/derivative_log_unnormalized_pdf.hpp   (contents, props changed)
   sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/normalizing_constant.hpp   (contents, props changed)

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/cdf.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/cdf.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+//////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::cdf.hpp       					//
+//                                                                          //
+//  (C) Copyright 2009 Erwann Rogard                                        //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_CDF_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_CDF_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D,typename X>
+    typename reference_wrapper<D>::value_type
+    cdf(const reference_wrapper<D>& rw, const X& x)
+    {
+        return cdf(rw.distribution(),x);
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/derivative_log_unnormalized_pdf.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/derivative_log_unnormalized_pdf.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+///////////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::derivative_log_unnormalized_pdf.hpp //
+//                                                                          	 //
+//  (C) Copyright 2009 Erwann Rogard                                        	 //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_DERIVATIVE_LOG_UNNORMALIZED_PDF_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_DERIVATIVE_LOG_UNNORMALIZED_PDF_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D,typename X>
+    typename reference_wrapper<D>::value_type
+    derivative_log_unnormalized_pdf(const reference_wrapper<D>& rw, const X& x)
+    {
+        return derivative_log_unnormalized_pdf(rw.distribution(),x);
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/description.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/description.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,37 @@
+//////////////////////////////////////////////////////////////////////////////////
+// distribution::common::distributions::reference::description.hpp              //
+//                                                                              //
+//  (C) Copyright 2009 Erwann Rogard                                            //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_DESCRIPTION_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_DESCRIPTION_HPP_ER_2009
+#include <string>
+#include <boost/format.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D>
+    std::string 
+    description(
+        const reference_wrapper<D>& dist
+    ){
+        static const char* msg = "reference_wrapper<%1%>";
+        boost::format f(msg); 
+        f%description(dist.distribution());
+        return f.str();
+    }
+    
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif
+

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/mean.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/mean.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+//////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::mean.hpp       				//
+//                                                                          //
+//  (C) Copyright 2009 Erwann Rogard                                        //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_MEAN_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_MEAN_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D>
+    typename reference_wrapper<D>::value_type
+    mean(const reference_wrapper<D>& rw)
+    {
+        return mean(rw.distribution());
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/normalizing_constant.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/normalizing_constant.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+//////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::normalizing_constant.hpp       //
+//                                                                          //
+//  (C) Copyright 2009 Erwann Rogard                                        //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_NORMALIZING_CONSTANT_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_NORMALIZING_CONSTANT_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D>
+    typename reference_wrapper<D>::value_type
+    normalizing_constant(const reference_wrapper<D>& rw)
+    {
+        return normalizing_constant(rw.distribution());
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/os.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/os.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+/////////////////////////////////////////////////////////////////////////////////
+// distribution::commmon::distributions::reference::os.hpp 				   	   //
+//                                                                             //
+//  (C) Copyright 2009 Erwann Rogard                                           //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_OS_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_OS_HPP_ER_2009
+#include <boost/statistics/detail/distribution_toolkit/distributions/uniform/description.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D>
+	std::ostream&
+    operator<<(
+    	std::ostream& os,
+        const reference_wrapper<D>& dist
+    )
+    {
+        return (os << description(dist));
+    }
+
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/pdf.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/pdf.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+//////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::pdf.hpp       					//
+//                                                                          //
+//  (C) Copyright 2009 Erwann Rogard                                        //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_PDF_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_PDF_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D,typename X>
+    typename reference_wrapper<D>::value_type
+    pdf(const reference_wrapper<D>& rw, const X& x)
+    {
+        return pdf(rw.distribution(),x);
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/random.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/random.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,39 @@
+/////////////////////////////////////////////////////////////////////////////////
+// distribution::common::distributions::reference::random.hpp                  //
+//                                                                             //
+//  (C) Copyright 2009 Erwann Rogard                                           //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_RANDOM_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_RANDOM_HPP_ER_2009
+#include <boost/math/distributions/exponential.hpp>
+#include <boost/random/exponential_distribution.hpp>
+#include <boost/statistics/detail/distribution_common/meta/random/distribution.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+namespace meta{
+
+    template<typename D>
+    struct random_distribution< reference_wrapper<D> >
+    {
+        typedef typename reference_wrapper<D>::distribution_type dist_;
+        typedef random_distribution<dist_> inner_; 
+        typedef typename inner_::type type;
+        
+        static type call(const reference_wrapper<D>& d){ 
+        	return inner_::call(d.distribution());
+        }
+    };
+    
+}// meta
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/variance.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/distributions/reference/variance.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,33 @@
+//////////////////////////////////////////////////////////////////////////////
+// distribution::common::reference::wrapper::variance.hpp       			//
+//                                                                          //
+//  (C) Copyright 2009 Erwann Rogard                                        //
+//  Use, modification and distribution are subject to 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_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_VARIANCE_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_DISTRIBUTIONS_REFERENCE_WRAPPER_VARIANCE_HPP_ER_2009
+#include <boost/mpl/empty_base.hpp>
+#include <boost/call_traits.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+#include <boost/statistics/detail/distribution_common/distributions/reference/wrapper.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+
+    template<typename D>
+    typename reference_wrapper<D>::value_type
+    variance(const reference_wrapper<D>& rw)
+    {
+        return variance(rw.distribution());
+    }
+
+}// distribution    
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/cdf.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/cdf.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,61 @@
+///////////////////////////////////////////////////////////////////////////////
+// distribution::common::functor::cdf.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_DISTRIBUTION_COMMON_FUNCTOR_CDF_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_FUNCTOR_CDF_HPP_ER_2009
+#include <boost/mpl/assert.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+namespace functor{
+
+    template<typename D>
+    class cdf_
+    {
+
+        BOOST_MPL_ASSERT(( boost::mpl::not_< boost::is_reference<D> >)); 
+        // use reference::wrapper if a ref is needed
+
+        public:
+        typedef D distribution_type;
+        typedef typename distribution::meta::value<D>::type result_type;
+
+        cdf_(){}
+        cdf_(const D& d):d_(d){}
+        cdf_(const cdf_& that):d_(that.d_){}
+        cdf_& operator=(const cdf_& that)
+        {
+            if(&that!=this)
+            {
+                d_ = that.d_;
+            }
+            return (*this);
+        }
+
+        template<typename X>
+        result_type 
+        operator()(const X& x)const{
+            return cdf( this->distribution(), x );
+        }
+    
+        const D& distribution()const{ return this->d_; }
+    
+        private:
+        D d_;
+    
+    };
+
+}// functor
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/derivative_log_unnormalized_pdf.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/derivative_log_unnormalized_pdf.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,65 @@
+///////////////////////////////////////////////////////////////////////////////////
+// distribution::common::functor::derivative_derivative_log_unnormalized_pdf.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_DISTRIBUTION_COMMON_FUNCTOR_DERIVATIVE_LOG_UNNORMALIZED_PDF_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_FUNCTOR_DERIVATIVE_LOG_UNNORMALIZED_PDF_HPP_ER_2009
+#include <boost/mpl/assert.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+namespace functor{
+
+    template<typename D>
+    class derivative_log_unnormalized_pdf_
+    {
+
+        BOOST_MPL_ASSERT(( boost::mpl::not_< boost::is_reference<D> >)); 
+        // use reference::wrapper if a ref is needed
+
+        public:
+        typedef D distribution_type;
+        typedef typename common::meta::value<D>::type result_type;
+
+        derivative_log_unnormalized_pdf_(){}
+        derivative_log_unnormalized_pdf_(const D& d):d_(d){}
+        derivative_log_unnormalized_pdf_(
+        	const derivative_log_unnormalized_pdf_& that
+        ):d_(that.d_){}
+        derivative_log_unnormalized_pdf_& operator=(
+        	const derivative_log_unnormalized_pdf_& that
+        )
+        {
+            if(&that!=this)
+            {
+                d_ = that.d_;
+            }
+            return (*this);
+        }
+
+        template<typename X>
+        result_type 
+        operator()(const X& x)const{
+            return derivative_log_unnormalized_pdf( this->distribution(), x );
+        }
+    
+        const D& distribution()const{ return this->d_; }
+    
+        private:
+        D d_;
+    
+    };
+
+}// functor
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file

Added: sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/normalizing_constant.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/distribution_common/boost/statistics/detail/distribution_common/functor/normalizing_constant.hpp	2009-12-05 20:02:22 EST (Sat, 05 Dec 2009)
@@ -0,0 +1,60 @@
+///////////////////////////////////////////////////////////////////////////////
+// distribution::common::functor::normalizing_constant.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_DISTRIBUTION_COMMON_FUNCTOR_NORMALIZING_CONSTANT_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_DISTRIBUTION_COMMON_FUNCTOR_NORMALIZING_CONSTANT_HPP_ER_2009
+#include <boost/mpl/assert.hpp>
+#include <boost/statistics/detail/distribution_common/meta/value.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace distribution{
+namespace functor{
+
+    template<typename D>
+    class normalizing_constant_
+    {
+
+        BOOST_MPL_ASSERT(( boost::mpl::not_< boost::is_reference<D> >)); 
+        // use reference::wrapper if a ref is needed
+
+        public:
+        typedef D distribution_type;
+        typedef typename common::meta::value<D>::type result_type;
+
+        normalizing_constant_(){}
+        normalizing_constant_(const D& d):d_(d){}
+        normalizing_constant_(const normalizing_constant_& that):d_(that.d_){}
+        normalizing_constant_& operator=(const normalizing_constant_& that)
+        {
+            if(&that!=this)
+            {
+                d_ = that.d_;
+            }
+            return (*this);
+        }
+
+        template<typename X>
+        result_type operator()(const X& x)const{
+            return normalizing_constant( this->distribution(), x );
+        }
+    
+        const D& distribution()const{ return this->d_; }
+    
+        private:
+        D d_;
+    
+    };
+
+}// functor
+}// distribution
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file