Add SCons configure checks

[senf.git] / boost_ext / boost / parameter / macros.hpp

diff --git a/boost_ext/boost/parameter/macros.hpp b/boost_ext/boost/parameter/macros.hpp
new file mode 100644 (file)
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+++ b/boost_ext/boost/parameter/macros.hpp
@@ -0,0 +1,98 @@
+// Copyright David Abrahams, Daniel Wallin 2003. Use, modification and 
+// distribution is subject to 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)
+
+#ifndef BOOST_PARAMETER_MACROS_050412_HPP
+#define BOOST_PARAMETER_MACROS_050412_HPP
+
+#include <boost/preprocessor/tuple/elem.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/preprocessor/arithmetic/inc.hpp>
+#include <boost/preprocessor/logical/bool.hpp>
+#include <boost/preprocessor/punctuation/comma_if.hpp>
+#include <boost/preprocessor/control/expr_if.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/cat.hpp>
+
+#define BOOST_PARAMETER_FUN_TEMPLATE_HEAD1(n) \
+    template<BOOST_PP_ENUM_PARAMS(n, class T)>
+
+#define BOOST_PARAMETER_FUN_TEMPLATE_HEAD0(n)
+
+#ifndef BOOST_NO_SFINAE
+
+# define BOOST_PARAMETER_MATCH_TYPE(n, param)           \
+            BOOST_PP_EXPR_IF(n, typename) param::match  \
+            <                                           \
+                BOOST_PP_ENUM_PARAMS(n, T)              \
+            >::type 
+
+#else
+
+# define BOOST_PARAMETER_MATCH_TYPE(n, param) param
+
+#endif
+
+#define BOOST_PARAMETER_FUN_DECL(z, n, params)                                      \
+                                                                                    \
+    BOOST_PP_CAT(BOOST_PARAMETER_FUN_TEMPLATE_HEAD, BOOST_PP_BOOL(n))(n)            \
+                                                                                    \
+    BOOST_PP_TUPLE_ELEM(3, 0, params)                                               \
+        BOOST_PP_TUPLE_ELEM(3, 1, params)(                                          \
+            BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& p)                             \
+            BOOST_PP_COMMA_IF(n)                                                    \
+            BOOST_PARAMETER_MATCH_TYPE(n,BOOST_PP_TUPLE_ELEM(3, 2, params))         \
+            kw = BOOST_PP_TUPLE_ELEM(3, 2, params)()                                \
+        )                                                                           \
+    {                                                                               \
+        return BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(3, 1, params), _with_named_params)( \
+            kw(BOOST_PP_ENUM_PARAMS(n, p))                                          \
+        );                                                                          \
+    }
+
+// Generates:
+//
+// template<class Params>
+// ret name ## _with_named_params(Params const&);
+//
+// template<class T0>
+// ret name(T0 const& p0, typename parameters::match<T0>::type kw = parameters())
+// {
+//     return name ## _with_named_params(kw(p0));
+// }
+//
+// template<class T0, ..., class TN>
+// ret name(T0 const& p0, ..., TN const& PN
+//    , typename parameters::match<T0, ..., TN>::type kw = parameters())
+// {
+//     return name ## _with_named_params(kw(p0, ..., pN));
+// }
+//
+// template<class Params>
+// ret name ## _with_named_params(Params const&)
+//
+// lo and hi determines the min and max arity of the generated functions.
+
+#define BOOST_PARAMETER_FUN(ret, name, lo, hi, parameters)                          \
+                                                                                    \
+    template<class Params>                                                          \
+    ret BOOST_PP_CAT(name, _with_named_params)(Params const&);                      \
+                                                                                    \
+    BOOST_PP_REPEAT_FROM_TO(                                                        \
+        lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters))    \
+                                                                                    \
+    template<class Params>                                                          \
+    ret BOOST_PP_CAT(name, _with_named_params)(Params const& p)
+
+#define BOOST_PARAMETER_MEMFUN(ret, name, lo, hi, parameters)                       \
+                                                                                    \
+    BOOST_PP_REPEAT_FROM_TO(                                                        \
+        lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters))    \
+                                                                                    \
+    template<class Params>                                                          \
+    ret BOOST_PP_CAT(name, _with_named_params)(Params const& p)
+
+#endif // BOOST_PARAMETER_MACROS_050412_HPP
+