Added boost header

test/external/boost/proto/args.hpp

@@ -0,0 +1,165 @@
+///////////////////////////////////////////////////////////////////////////////
+/// \file args.hpp
+/// Contains definition of \c term\<\>, \c list1\<\>, \c list2\<\>, ...
+/// class templates.
+//
+//  Copyright 2008 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)
+
+#ifndef BOOST_PROTO_ARGS_HPP_EAN_04_01_2005
+#define BOOST_PROTO_ARGS_HPP_EAN_04_01_2005
+
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/arithmetic/dec.hpp>
+#include <boost/preprocessor/iteration/iterate.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/repeat.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/type_traits/is_function.hpp>
+#include <boost/type_traits/is_abstract.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/or.hpp>
+#include <boost/mpl/void.hpp>
+#include <boost/proto/proto_fwd.hpp>
+
+namespace boost { namespace proto
+{
+    namespace detail
+    {
+        // All classes derived from std::ios_base have these public nested types,
+        // and are non-copyable. This is an imperfect test, but it's the best we
+        // we can do.
+        template<typename T>
+        yes_type check_is_iostream(
+            typename T::failure *
+          , typename T::Init *
+          , typename T::fmtflags *
+          , typename T::iostate *
+          , typename T::openmode *
+          , typename T::seekdir *
+        );
+
+        template<typename T>
+        no_type check_is_iostream(...);
+
+        template<typename T>
+        struct is_iostream
+        {
+            static bool const value = sizeof(yes_type) == sizeof(check_is_iostream<T>(0,0,0,0,0,0));
+            typedef mpl::bool_<value> type;
+        };
+
+        /// INTERNAL ONLY
+        // This should be a customization point. And it serves the same purpose
+        // as the is_noncopyable trait in Boost.Foreach. 
+        template<typename T>
+        struct ref_only
+          : mpl::or_<
+                is_function<T>
+              , is_abstract<T>
+              , is_iostream<T>
+            >
+        {};
+
+        /// INTERNAL ONLY
+        template<typename Expr>
+        struct expr_traits
+        {
+            typedef Expr value_type;
+            typedef Expr &reference;
+            typedef Expr const &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename Expr>
+        struct expr_traits<Expr &>
+        {
+            typedef Expr value_type;
+            typedef Expr &reference;
+            typedef Expr &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename Expr>
+        struct expr_traits<Expr const &>
+        {
+            typedef Expr value_type;
+            typedef Expr const &reference;
+            typedef Expr const &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename T>
+        struct term_traits
+        {
+            typedef T value_type;
+            typedef T &reference;
+            typedef T const &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename T>
+        struct term_traits<T &>
+        {
+            typedef typename mpl::if_c<ref_only<T>::value, T &, T>::type value_type;
+            typedef T &reference;
+            typedef T &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename T>
+        struct term_traits<T const &>
+        {
+            typedef T value_type;
+            typedef T const &reference;
+            typedef T const &const_reference;
+        };
+
+        /// INTERNAL ONLY
+        template<typename T, std::size_t N>
+        struct term_traits<T (&)[N]>
+        {
+            typedef T value_type[N];
+            typedef T (&reference)[N];
+            typedef T (&const_reference)[N];
+        };
+
+        /// INTERNAL ONLY
+        template<typename T, std::size_t N>
+        struct term_traits<T const (&)[N]>
+        {
+            typedef T value_type[N];
+            typedef T const (&reference)[N];
+            typedef T const (&const_reference)[N];
+        };
+
+        /// INTERNAL ONLY
+        template<typename T, std::size_t N>
+        struct term_traits<T[N]>
+        {
+            typedef T value_type[N];
+            typedef T (&reference)[N];
+            typedef T const (&const_reference)[N];
+        };
+
+        /// INTERNAL ONLY
+        template<typename T, std::size_t N>
+        struct term_traits<T const[N]>
+        {
+            typedef T value_type[N];
+            typedef T const (&reference)[N];
+            typedef T const (&const_reference)[N];
+        };
+    }
+
+    namespace argsns_
+    {
+        // This is where term and all the different listN templates are defined
+        #include <boost/proto/detail/args.hpp>
+    }
+
+}}
+
+#endif
+