1 files changed, 61 insertions, 0 deletions
diff --git a/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp b/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp
new file mode 100644
index 000000000..d80f2f9f0
--- /dev/null
+++ b/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp
@@ -0,0 +1,61 @@
+
+#include <boost/parameter.hpp>
+#include <iostream>
+
+BOOST_PARAMETER_NAME(index)
+
+template <typename ArgumentPack>
+int print_index(ArgumentPack const& args)
+{
+    std::cout << "index = " << args[_index] << std::endl;
+    return 0;
+}
+
+BOOST_PARAMETER_NAME(name)
+
+template <typename ArgumentPack>
+int print_name_and_index(ArgumentPack const& args)
+{
+    std::cout << "name = " << args[_name] << "; ";
+    return print_index(args);
+}
+
+#include <boost/core/lightweight_test.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/placeholders.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_convertible.hpp>
+
+int main()
+{
+    int x = print_index(_index = 3);  // prints "index = 3"
+    int y = print_name_and_index((_index = 3, _name = "jones"));
+    boost::parameter::parameters<
+        boost::parameter::required<
+            tag::name
+          , boost::mpl::if_<
+                boost::is_convertible<boost::mpl::_,char const*>
+              , boost::mpl::true_
+              , boost::mpl::false_
+            >
+        >
+      , boost::parameter::optional<
+            tag::index
+          , boost::mpl::if_<
+                boost::is_convertible<boost::mpl::_,int>
+              , boost::mpl::true_
+              , boost::mpl::false_
+            >
+        >
+    > spec;
+    char const sam[] = "sam";
+    int twelve = 12;
+    int z0 = print_name_and_index(spec(sam, twelve));
+    int z1 = print_name_and_index(spec(_index=12, _name="sam"));
+    BOOST_TEST(!x);
+    BOOST_TEST(!y);
+    BOOST_TEST(!z0);
+    BOOST_TEST(!z1);
+    return boost::report_errors();
+}
+