adding fusion docs and tests

[SVN r34920]
2025-07-17 14:22:13 +02:00 · 2006-08-22 15:57:13 +00:00
parent 75b9d13a88
commit c31253d8c1
351 changed files with 42280 additions and 0 deletions
--- a/test/sequence/transform_view.cpp
+++ b/test/sequence/transform_view.cpp
@ -0,0 +1,102 @@
+/*=============================================================================
+    Copyright (c) 2001-2006 Joel de Guzman
+
+    Use, modification and distribution is subject to 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)
+==============================================================================*/
+#include <boost/detail/lightweight_test.hpp>
+#include <boost/fusion/sequence/container/vector/vector.hpp>
+#include <boost/fusion/sequence/adapted/mpl.hpp>
+#include <boost/fusion/sequence/io/out.hpp>
+#include <boost/fusion/sequence/generation/make_vector.hpp>
+#include <boost/fusion/sequence/comparison/equal_to.hpp>
+#include <boost/fusion/sequence/view/transform_view/transform_view.hpp>
+#include <boost/fusion/sequence/intrinsic/begin.hpp>
+#include <boost/fusion/iterator/next.hpp>
+#include <boost/fusion/iterator/prior.hpp>
+#include <boost/fusion/iterator/advance.hpp>
+#include <boost/fusion/iterator/deref.hpp>
+#include <boost/fusion/iterator/distance.hpp>
+
+#include <boost/mpl/range_c.hpp>
+
+struct square
+{
+    template <typename T>
+    struct result
+    {
+        typedef int type;
+    };
+
+    template <typename T>
+    int operator()(T x) const
+    {
+        return x * x;
+    }
+};
+
+struct add
+{
+    template <typename A, typename B>
+    struct result
+    {
+        typedef int type;
+    };
+
+    template <typename A, typename B>
+    int operator()(A a, B b) const
+    {
+        return a + b;
+    }
+};
+
+int
+main()
+{
+    using namespace boost::fusion;
+
+    std::cout << tuple_open('[');
+    std::cout << tuple_close(']');
+    std::cout << tuple_delimiter(", ");
+
+/// Testing the transform_view
+
+    {
+        typedef boost::mpl::range_c<int, 5, 9> sequence_type;
+        sequence_type sequence;
+        square sq;
+        typedef transform_view<sequence_type, square> xform_type;
+        xform_type xform(sequence, sq);
+
+        std::cout << xform << std::endl;
+        BOOST_TEST((xform == make_vector(25, 36, 49, 64)));
+
+        typedef boost::fusion::result_of::begin<xform_type>::type first_type;
+        first_type first_it(boost::fusion::begin(xform));
+
+        typedef boost::fusion::result_of::next<first_type>::type next_type;
+        next_type next_it(boost::fusion::next(first_it));
+        BOOST_TEST((*next_it == 36));
+        BOOST_TEST((*boost::fusion::prior(next_it) == 25));
+        BOOST_TEST((boost::fusion::distance(first_it, next_it) == 1));
+
+        BOOST_TEST((*boost::fusion::advance_c<3>(boost::fusion::begin(xform)) == 64));
+    }
+    
+    {
+        typedef boost::mpl::range_c<int, 5, 9> sequence1_type;
+        typedef boost::mpl::range_c<int, 10, 14> sequence2_type;
+        sequence1_type sequence1;
+        sequence2_type sequence2;
+        add f;
+        typedef transform_view<sequence1_type, sequence2_type, add> xform_type;
+        xform_type xform(sequence1, sequence2, f);
+
+        std::cout << xform << std::endl;
+        BOOST_TEST((xform == make_vector(15, 17, 19, 21)));
+    }
+
+    return boost::report_errors();
+}
+