1 files changed, 55 insertions, 0 deletions
diff --git a/src/boost/libs/mpl/test/fold.cpp b/src/boost/libs/mpl/test/fold.cpp
new file mode 100644
index 000000000..48f475874
--- /dev/null
+++ b/src/boost/libs/mpl/test/fold.cpp
@@ -0,0 +1,55 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/fold.hpp>
+#include <boost/mpl/reverse_fold.hpp>
+//#include <boost/mpl/vector.hpp>
+#include <boost/mpl/list.hpp>
+#include <boost/mpl/list_c.hpp>
+#include <boost/mpl/equal.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/mpl/next.hpp>
+#include <boost/mpl/push_front.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/less.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/at.hpp>
+#include <boost/mpl/size.hpp>
+#include <boost/type_traits/is_float.hpp>
+
+#include <boost/mpl/aux_/test.hpp>
+
+MPL_TEST_CASE()
+{
+    typedef list<long,float,short,double,float,long,long double> types;
+    typedef fold<
+          types
+        , int_<0>
+        , if_< boost::is_float<_2>,next<_1>,_1 >
+        >::type number_of_floats;
+
+    MPL_ASSERT_RELATION( number_of_floats::value, ==, 4 );
+}
+
+MPL_TEST_CASE()
+{
+    typedef list_c<int,5,-1,0,-7,-2,0,-5,4> numbers;
+    typedef list_c<int,-1,-7,-2,-5> negatives;
+    typedef reverse_fold<
+          numbers
+        , list_c<int>
+        , if_< less< _2,int_<0> >, push_front<_1,_2>, _1 >
+        >::type result;
+
+    MPL_ASSERT(( equal< result,negatives,equal_to<_1,_2> > ));
+}