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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/python/test/input_iterator.cpp
parentInitial commit. (diff)
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Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/python/test/input_iterator.cpp')
-rw-r--r--src/boost/libs/python/test/input_iterator.cpp48
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diff --git a/src/boost/libs/python/test/input_iterator.cpp b/src/boost/libs/python/test/input_iterator.cpp
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+// 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"