Imported from /home/lorry/working-area/delta_boost-tarball/boost_1_54_0.tar.bz2.boost_1_54_0baserock/morph

1 files changed, 48 insertions, 0 deletions

diff --git a/libs/python/test/input_iterator.cpp b/libs/python/test/input_iterator.cpp
new file mode 100644
index 000000000..70b994186
--- /dev/null
+++ b/libs/python/test/input_iterator.cpp
@@ -0,0 +1,48 @@
+// Copyright David Abrahams 2002.
+// 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)
+#include <boost/python/module.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/class.hpp>
+#include <boost/python/iterator.hpp>
+#include <boost/iterator/transform_iterator.hpp>
+#include <list>
+
+using namespace boost::python;
+
+typedef std::list<int> list_int;
+
+// Prove that we can handle InputIterators which return rvalues.
+struct doubler
+{
+    typedef int result_type;
+    int operator()(int x) const { return x * 2; }
+};
+
+typedef boost::transform_iterator<doubler, list_int::iterator> doubling_iterator;
+typedef std::pair<doubling_iterator,doubling_iterator> list_range2;
+
+list_range2 range2(list_int& x)
+{
+    return list_range2(
+        boost::make_transform_iterator<doubler>(x.begin(), doubler())
+      , boost::make_transform_iterator<doubler>(x.end(), doubler()));
+}
+
+// We do this in a separate module from iterators_ext (iterators.cpp)
+// to work around an MSVC6 linker bug, which causes it to complain
+// about a "duplicate comdat" if the input iterator is instantiated in
+// the same module with the others.
+BOOST_PYTHON_MODULE(input_iterator)
+{
+    def("range2", &::range2);
+    
+    class_<list_range2>("list_range2")
+        // We can wrap InputIterators which return by-value
+        .def("__iter__"
+             , range(&list_range2::first, &list_range2::second))
+        ;
+}
+
+#include "module_tail.cpp"