added make_xxx functions for some of the iterators

[SVN r21611]

example/reverse_iterator_example.cpp

@@ -0,0 +1,43 @@
+// (C) Copyright Jeremy Siek 2000-2004.
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all
+// copies. This software is provided "as is" without express or
+// implied warranty, and with no claim as to its suitability for any
+// purpose.
+
+#include <boost/config.hpp>
+#include <iostream>
+#include <algorithm>
+#include <boost/iterator/reverse_iterator.hpp>
+#include <boost/cstdlib.hpp>
+
+int main(int, char*[])
+{
+  char letters_[] = "hello world!";
+  const int N = sizeof(letters_)/sizeof(char) - 1;
+  typedef char* base_iterator;
+  base_iterator letters(letters_);
+  
+  std::cout << "original sequence of letters:\t\t\t"
+            << letters_ << std::endl;
+
+  // Use reverse_iterator to print a sequence of letters in reverse
+  // order.
+  
+  boost::reverse_iterator<base_iterator>
+    reverse_letters_first(letters + N),
+    reverse_letters_last(letters);
+
+  std::cout << "sequence in reverse order:\t\t\t";
+  std::copy(reverse_letters_first, reverse_letters_last,
+            std::ostream_iterator<char>(std::cout));
+  std::cout << std::endl;
+
+  std::cout << "sequence in double-reversed (normal) order:\t";
+  std::copy(boost::make_reverse_iterator(reverse_letters_last),
+            boost::make_reverse_iterator(reverse_letters_first),
+            std::ostream_iterator<char>(std::cout));
+  std::cout << std::endl;
+
+  return boost::exit_success;
+}