Added c++11 algorithms to Boost.Algorithm

[SVN r77060]

include/boost/algorithm/cxx11/is_partitioned.hpp

@@ -0,0 +1,65 @@
+/* 
+   Copyright (c) Marshall Clow 2011-2012.
+
+   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)
+*/
+
+/// \file  is_partitioned.hpp
+/// \brief Tell if a sequence is partitioned
+/// \author Marshall Clow
+
+#ifndef BOOST_ALGORITHM_IS_PARTITIONED_HPP
+#define BOOST_ALGORITHM_IS_PARTITIONED_HPP
+
+#include <algorithm>	// for std::is_partitioned, if available
+
+#include <boost/range/begin.hpp>
+#include <boost/range/end.hpp>
+
+namespace boost { namespace algorithm {
+
+#if __cplusplus >= 201103L
+//  Use the C++11 versions of iota if it is available
+using std::is_partitioned;      // Section 25.3.13
+#else
+/// \fn is_partitioned ( InputIterator first, InputIterator last, UnaryPredicate p )
+/// \brief Tests to see if a sequence is partititioned according to a predicate
+/// 
+/// \param first    The start of the input sequence
+/// \param last     One past the end of the input sequence
+/// \param p        The predicicate to test the values with
+/// \note           This function is part of the C++2011 standard library.
+///  We will use the standard one if it is available, 
+///  otherwise we have our own implementation.
+template <typename InputIterator, typename UnaryPredicate>
+bool is_partitioned ( InputIterator first, InputIterator last, UnaryPredicate p )
+{
+//	Run through the part that satisfy the predicate
+    for ( ; first != last; ++first )
+        if ( !p (*first))
+        	break;
+//	Now the part that does not satisfy the predicate
+    for ( ; first != last; ++first )
+        if ( p (*first))
+        	return false;
+    return true;
+}
+#endif
+
+/// \fn is_partitioned ( const Range &r, UnaryPredicate p )
+/// \brief Generates an increasing sequence of values, and stores them in the input Range.
+/// 
+/// \param r        The input range
+/// \param p        The predicicate to test the values with
+///
+template <typename Range, typename UnaryPredicate>
+bool is_partitioned ( const Range &r, UnaryPredicate p )
+{
+    return boost::algorithm::is_partitioned (boost::begin(r), boost::end(r), p);
+}
+
+
+}}
+
+#endif  // BOOST_ALGORITHM_IS_PARTITIONED_HPP