Release 1.47.0

[SVN r73007]

include/boost/pending/integer_range.hpp

@@ -0,0 +1,59 @@
+// (C) Copyright David Abrahams and Jeremy Siek 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)
+//
+// Revision History:
+// 04 Jan 2001  Factored counting_iterator stuff into
+//              boost/counting_iterator.hpp (David Abrahams)
+
+#ifndef BOOST_INTEGER_RANGE_HPP_
+#define BOOST_INTEGER_RANGE_HPP_
+
+#include <boost/config.hpp>
+#include <boost/iterator/counting_iterator.hpp>
+#include <algorithm>
+
+namespace boost {
+
+//=============================================================================
+// Counting Iterator and Integer Range Class
+
+template <class IntegerType>
+struct integer_range {
+    typedef counting_iterator<IntegerType> iterator;
+
+    typedef iterator const_iterator;
+    typedef IntegerType value_type;
+    typedef std::ptrdiff_t difference_type;
+    typedef IntegerType reference;
+    typedef IntegerType const_reference;
+    typedef const IntegerType* pointer;
+    typedef const IntegerType* const_pointer;
+    typedef IntegerType size_type;
+
+    integer_range(IntegerType start, IntegerType finish)
+        : m_start(start), m_finish(finish) { }
+
+    iterator begin() const { return iterator(m_start); }
+    iterator end() const { return iterator(m_finish); }
+    size_type size() const { return m_finish - m_start; }
+    bool empty() const { return m_finish == m_start; }
+    void swap(integer_range& x) {
+        std::swap(m_start, x.m_start);
+        std::swap(m_finish, x.m_finish);
+    }
+protected:
+    IntegerType m_start, m_finish;
+};
+
+template <class IntegerType>
+inline integer_range<IntegerType>
+make_integer_range(IntegerType first, IntegerType last)
+{
+  return integer_range<IntegerType>(first, last);
+}
+
+} // namespace boost
+
+#endif // BOOST_INTEGER_RANGE_HPP_