Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/src/boost/libs/metaparse/example/meta_hs/curry.hpp b/src/boost/libs/metaparse/example/meta_hs/curry.hpp
new file mode 100644
index 00000000..5ca1711d
--- /dev/null
+++ b/src/boost/libs/metaparse/example/meta_hs/curry.hpp
@@ -0,0 +1,106 @@
+#ifndef BOOST_METAPARSE_META_HS_CURRY_HPP
+#define BOOST_METAPARSE_META_HS_CURRY_HPP
+
+// Copyright Abel Sinkovics (abel@sinkovics.hu)  2010.
+// 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/mpl/eval_if.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/mpl/minus.hpp>
+#include <boost/mpl/push_back.hpp>
+#include <boost/mpl/unpack_args.hpp>
+#include <boost/mpl/deque.hpp>
+#include <boost/mpl/quote.hpp>
+
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum.hpp>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/tuple/eat.hpp>
+
+#ifndef CURRY_MAX_ARGUMENT
+#  define CURRY_MAX_ARGUMENT 5
+#endif
+
+namespace impl
+{
+  template <
+    class UnpackedMetafunctionClass,
+    class ArgumentsLeft,
+    class ArgumentList
+  >
+  struct curry_impl;
+
+
+
+  template <
+    class UnpackedMetafunctionClass,
+    class ArgumentsLeft,
+    class ArgumentList
+  >
+  struct next_currying_step
+  {
+    typedef next_currying_step type;
+
+    template <class T>
+    struct apply :
+      curry_impl<
+        UnpackedMetafunctionClass,
+        typename boost::mpl::minus<
+          ArgumentsLeft,
+          boost::mpl::int_<1>
+        >::type,
+        typename boost::mpl::push_back<ArgumentList, T>::type
+      >
+    {};
+  };
+
+
+  template <
+    class UnpackedMetafunctionClass,
+    class ArgumentsLeft,
+    class ArgumentList
+  >
+  struct curry_impl :
+    boost::mpl::eval_if<
+      typename boost::mpl::equal_to<
+        ArgumentsLeft,
+        boost::mpl::int_<0>
+      >::type,
+      boost::mpl::apply<UnpackedMetafunctionClass, ArgumentList>,
+      next_currying_step<
+        UnpackedMetafunctionClass,
+        ArgumentsLeft,
+        ArgumentList
+      >
+    >
+  {};
+}
+
+
+template <class T>
+struct curry0 : T {};
+
+#ifdef CURRY
+#  error CURRY already defined
+#endif
+#define CURRY(z, n, unused) \
+  template <template <BOOST_PP_ENUM(n,class BOOST_PP_TUPLE_EAT(3),~)> class T> \
+  struct BOOST_PP_CAT(curry, n) : \
+    impl::curry_impl< \
+      boost::mpl::unpack_args<boost::mpl::BOOST_PP_CAT(quote, n) <T> >, \
+      boost::mpl::int_<n>, \
+      boost::mpl::deque<> \
+    >::type \
+  {};
+
+BOOST_PP_REPEAT_FROM_TO(1, CURRY_MAX_ARGUMENT, CURRY, ~)
+
+#undef CURRY
+
+#endif
+