[Boost-commit] svn:boost r69113 - in trunk/boost/fusion: include sequence sequence/intrinsic

Subject: [Boost-commit] svn:boost r69113 - in trunk/boost/fusion: include sequence sequence/intrinsic
From: joel_at_[hidden]
Date: 2011-02-20 20:09:01

Author: djowel
Date: 2011-02-20 20:08:53 EST (Sun, 20 Feb 2011)
New Revision: 69113
URL: http://svn.boost.org/trac/boost/changeset/69113

Log:
new assign intrinsic
Added:
   trunk/boost/fusion/include/assign.hpp   (contents, props changed)
   trunk/boost/fusion/sequence/intrinsic/assign.hpp   (contents, props changed)
Text files modified: 
   trunk/boost/fusion/sequence/intrinsic.hpp |     1 +                                       
   1 files changed, 1 insertions(+), 0 deletions(-)

Added: trunk/boost/fusion/include/assign.hpp
==============================================================================
--- (empty file)
+++ trunk/boost/fusion/include/assign.hpp	2011-02-20 20:08:53 EST (Sun, 20 Feb 2011)
@@ -0,0 +1,12 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_INCLUDE_ASSIGN)
+#define FUSION_INCLUDE_ASSIGN
+
+#include <boost/fusion/sequence/intrinsic/assign.hpp>
+
+#endif

Modified: trunk/boost/fusion/sequence/intrinsic.hpp
==============================================================================
--- trunk/boost/fusion/sequence/intrinsic.hpp	(original)
+++ trunk/boost/fusion/sequence/intrinsic.hpp	2011-02-20 20:08:53 EST (Sun, 20 Feb 2011)
@@ -18,5 +18,6 @@
 #include <boost/fusion/sequence/intrinsic/value_at.hpp>
 #include <boost/fusion/sequence/intrinsic/at_key.hpp>
 #include <boost/fusion/sequence/intrinsic/value_at_key.hpp>
+#include <boost/fusion/sequence/intrinsic/assign.hpp>
 
 #endif

Added: trunk/boost/fusion/sequence/intrinsic/assign.hpp
==============================================================================
--- (empty file)
+++ trunk/boost/fusion/sequence/intrinsic/assign.hpp	2011-02-20 20:08:53 EST (Sun, 20 Feb 2011)
@@ -0,0 +1,72 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_ASSIGN_02162011_2308)
+#define FUSION_ASSIGN_02162011_2308
+
+#include <boost/fusion/sequence/intrinsic/begin.hpp>
+#include <boost/fusion/sequence/intrinsic/end.hpp>
+#include <boost/fusion/sequence/intrinsic/size.hpp>
+#include <boost/fusion/sequence/comparison/detail/equal_to.hpp>
+#include <boost/config.hpp>
+
+#if defined (BOOST_MSVC)
+#  pragma warning(push)
+#  pragma warning (disable: 4100) // unreferenced formal parameter
+#endif
+
+namespace boost { namespace fusion
+{
+    namespace detail
+    {
+        template <typename Seq1, typename Seq2>
+        struct sequence_assign
+        {
+            typedef typename result_of::end<Seq1>::type end1_type;
+            typedef typename result_of::end<Seq2>::type end2_type;
+
+            template <typename I1, typename I2>
+            static void
+            call(I1 const&, I2 const&, mpl::true_)
+            {
+            }
+
+            template <typename I1, typename I2>
+            static void
+            call(I1 const& src, I2 const& dest, mpl::false_)
+            {
+                *src = *dest;
+                call(fusion::next(src), fusion::next(dest));
+            }
+
+            template <typename I1, typename I2>
+            static bool
+            call(I1 const& src, I2 const& dest)
+            {
+                typename result_of::equal_to<I1, end1_type>::type eq;
+                return call(src, dest, eq);
+            }
+        };
+    }
+
+    template <typename Seq1, typename Seq2>
+    inline bool
+    assign(Seq1 const& src, Seq2& dest)
+    {
+        BOOST_STATIC_ASSERT(
+            result_of::size<Seq1>::value == result_of::size<Seq2>::value);
+
+        detail::sequence_assign<
+            Seq1 const, Seq2>::
+            call(fusion::begin(src), fusion::begin(dest));
+    }
+}}
+
+#if defined (BOOST_MSVC)
+#  pragma warning(pop)
+#endif
+
+#endif