Subject: [Boost-commit] svn:boost r57330 - in sandbox/statistics/detail/functor: . boost boost/statistics boost/statistics/detail boost/statistics/detail/functor
From: erwann.rogard_at_[hidden]
Date: 2009-11-03 11:58:25
Author: e_r
Date: 2009-11-03 11:58:24 EST (Tue, 03 Nov 2009)
New Revision: 57330
URL: http://svn.boost.org/trac/boost/changeset/57330
Log:
a
Added:
sandbox/statistics/detail/functor/
sandbox/statistics/detail/functor/boost/
sandbox/statistics/detail/functor/boost/statistics/
sandbox/statistics/detail/functor/boost/statistics/detail/
sandbox/statistics/detail/functor/boost/statistics/detail/functor/
sandbox/statistics/detail/functor/boost/statistics/detail/functor/range_visitor.hpp (contents, props changed)
Added: sandbox/statistics/detail/functor/boost/statistics/detail/functor/range_visitor.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/detail/functor/boost/statistics/detail/functor/range_visitor.hpp 2009-11-03 11:58:24 EST (Tue, 03 Nov 2009)
@@ -0,0 +1,76 @@
+///////////////////////////////////////////////////////////////////////////////
+// boost::statistics::detail::functor::range_visitor.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_FUNCTOR_RANGE_VISITOR_HPP_ER_2009
+#define BOOST_STATISTICS_DETAIL_FUNCTOR_RANGE_VISITOR_HPP_ER_2009
+#include <iterator>
+#include <boost/range.hpp>
+#include <boost/utility.hpp>
+
+namespace boost{
+namespace statistics{
+namespace detail{
+namespace functor{
+
+ // Models Generator
+ //
+ // Successively returns elements of a range
+ template<typename R>
+ class range_visitor{
+ typedef typename range_iterator<R>::type it_t;
+ typedef std::size_t size_type;
+
+ public:
+ range_visitor(){}
+ range_visitor(const R& r):r_(r){ this-> reset(0); }
+ range_visitor(const range_visitor& that)
+ :r_(that.r_)
+ {
+ this->reset(
+ std::distance(
+ boost::begin(that.r_),
+ that.it_
+ )
+ );
+ }
+ range_visitor& operator=(const range_visitor& that)
+ {
+ if(&that!=this){
+ this->r_ = that.r_;
+ this->reset(
+ std::distance(
+ boost::begin(that.r_),
+ that.it_
+ )
+ );
+ }
+ return *this;
+ }
+
+ typedef typename range_value<R>::type result_type;
+
+ result_type operator()(){
+ typedef typename range_visitor<R>::result_type x_;
+ return *(this->it_++);
+ }
+
+ void reset(size_type n)
+ {
+ this->it_ = boost::next(boost::begin(this->r_),n);
+ }
+
+ private:
+ R r_;
+ it_t it_;
+ };
+
+}// functor
+}// detail
+}// statistics
+}// boost
+
+#endif
\ No newline at end of file