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diff --git a/src/boost/libs/spirit/example/karma/num_matrix.cpp b/src/boost/libs/spirit/example/karma/num_matrix.cpp
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+++ b/src/boost/libs/spirit/example/karma/num_matrix.cpp
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+/*=============================================================================
+    Copyright (c) 2002-2010 Hartmut Kaiser
+    Copyright (c) 2002-2010 Joel de Guzman
+
+    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)
+=============================================================================*/
+///////////////////////////////////////////////////////////////////////////////
+//
+//  This sample demonstrates a generator formatting and printing a matrix 
+//  of integers taken from a simple vector of vectors. The size and the 
+//  contents of the printed matrix is generated randomly.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include <boost/config/warning_disable.hpp>
+#include <boost/spirit/include/karma.hpp>
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <cstdlib>
+#include <ctime>
+
+namespace karma = boost::spirit::karma;
+
+namespace client
+{
+    ///////////////////////////////////////////////////////////////////////////
+    //  Our matrix generator
+    ///////////////////////////////////////////////////////////////////////////
+    //[tutorial_karma_nummatrix_grammar
+    template <typename OutputIterator>
+    struct matrix_grammar 
+      : karma::grammar<OutputIterator, std::vector<std::vector<int> >()>
+    {
+        matrix_grammar()
+          : matrix_grammar::base_type(matrix)
+        {
+            using karma::int_;
+            using karma::right_align;
+            using karma::eol;
+
+            element = right_align(10)[int_];
+            row = '|' << *element << '|';
+            matrix = row % eol;
+        }
+
+        karma::rule<OutputIterator, std::vector<std::vector<int> >()> matrix;
+        karma::rule<OutputIterator, std::vector<int>()> row;
+        karma::rule<OutputIterator, int()> element;
+    };
+    //]
+
+    //[tutorial_karma_nummatrix
+    template <typename OutputIterator>
+    bool generate_matrix(OutputIterator& sink
+      , std::vector<std::vector<int> > const& v)
+    {
+        matrix_grammar<OutputIterator> matrix;
+        return karma::generate(
+            sink,                           // destination: output iterator
+            matrix,                         // the generator
+            v                               // the data to output 
+        );
+    }
+    //]
+}
+
+////////////////////////////////////////////////////////////////////////////
+//  Main program
+////////////////////////////////////////////////////////////////////////////
+int
+main()
+{
+    std::cout << "/////////////////////////////////////////////////////////\n\n";
+    std::cout << "\tPrinting integers in a matrix using Spirit...\n\n";
+    std::cout << "/////////////////////////////////////////////////////////\n\n";
+
+    // here we put the data to generate
+    std::vector<std::vector<int> > v;
+
+    // now, generate the size and the contents for the matrix
+    std::srand((unsigned int)std::time(NULL));
+    std::size_t rows = std::rand() / (RAND_MAX / 10);
+    std::size_t columns = std::rand() / (RAND_MAX / 10);
+
+    v.resize(rows);
+    for (std::size_t row = 0; row < rows; ++row)
+    {
+        v[row].resize(columns);
+        std::generate(v[row].begin(), v[row].end(), std::rand);
+    }
+
+    // ok, we got the matrix, now print it out
+    std::string generated;
+    std::back_insert_iterator<std::string> sink(generated);
+    if (!client::generate_matrix(sink, v))
+    {
+        std::cout << "-------------------------\n";
+        std::cout << "Generating failed\n";
+        std::cout << "-------------------------\n";
+    }
+    else
+    {
+        std::cout << "-------------------------\n";
+        std::cout << "Generated:\n" << generated << "\n";
+        std::cout << "-------------------------\n";
+    }
+
+    return 0;
+}
+
+