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

1 files changed, 38 insertions, 0 deletions

diff --git a/libs/fusion/test/algorithm/count_if.cpp b/libs/fusion/test/algorithm/count_if.cpp
new file mode 100644
index 000000000..d70628903
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+++ b/libs/fusion/test/algorithm/count_if.cpp
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+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+    Copyright (c) 2005 Eric Niebler
+
+    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/detail/lightweight_test.hpp>
+#include <boost/fusion/container/vector/vector.hpp>
+#include <boost/fusion/adapted/mpl.hpp>
+#include <boost/fusion/algorithm/query/count_if.hpp>
+#include <boost/lambda/lambda.hpp>
+#include <boost/mpl/vector_c.hpp>
+#include <functional>
+
+int
+main()
+{
+    {
+        boost::fusion::vector<int, short, double> t(1, 2, 3.3);
+        BOOST_TEST(boost::fusion::count_if(t, boost::lambda::_1 == 2) == 1);
+    }
+
+    {
+        boost::fusion::vector<int, short, double> t(1, 2, 3.3);
+        BOOST_TEST(boost::fusion::count_if(t, boost::lambda::_1 == 3) == 0);
+    }
+
+    {
+        typedef boost::mpl::vector_c<int, 1, 2, 3> mpl_vec;
+        // Cannot use lambda here as mpl iterators return rvalues and lambda needs lvalues
+        BOOST_TEST(boost::fusion::count_if(mpl_vec(), std::bind2nd(std::less_equal<int>(), 2)) == 2);
+        BOOST_TEST(boost::fusion::count_if(mpl_vec(), std::bind2nd(std::greater<int>(), 2)) == 1);
+    }
+
+    return boost::report_errors();
+}
+