From b51965dddbed68f23c5e8c169c23c794313ce5f6 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 28 Jun 2011 17:17:23 +0200
Subject: Add boost subset as an implementation detail

---
 cutl/details/boost/mpl/eval_if.hpp | 71 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 cutl/details/boost/mpl/eval_if.hpp

(limited to 'cutl/details/boost/mpl/eval_if.hpp')

diff --git a/cutl/details/boost/mpl/eval_if.hpp b/cutl/details/boost/mpl/eval_if.hpp
new file mode 100644
index 0000000..8a993a2
--- /dev/null
+++ b/cutl/details/boost/mpl/eval_if.hpp
@@ -0,0 +1,71 @@
+
+#ifndef BOOST_MPL_EVAL_IF_HPP_INCLUDED
+#define BOOST_MPL_EVAL_IF_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: eval_if.hpp 61921 2010-05-11 21:33:24Z neilgroves $
+// $Date: 2010-05-11 17:33:24 -0400 (Tue, 11 May 2010) $
+// $Revision: 61921 $
+
+#include <cutl/details/boost/mpl/if.hpp>
+#include <cutl/details/boost/mpl/aux_/na_spec.hpp>
+#include <cutl/details/boost/mpl/aux_/lambda_support.hpp>
+#include <cutl/details/boost/mpl/aux_/config/msvc.hpp>
+#include <cutl/details/boost/mpl/aux_/config/gcc.hpp>
+#include <cutl/details/boost/mpl/aux_/config/workaround.hpp>
+
+namespace cutl_details_boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(C)
+    , typename BOOST_MPL_AUX_NA_PARAM(F1)
+    , typename BOOST_MPL_AUX_NA_PARAM(F2)
+    >
+struct eval_if
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
+     || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
+        && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
+        )
+{
+    typedef typename if_<C,F1,F2>::type f_;
+    typedef typename f_::type type;
+#else
+    : if_<C,F1,F2>::type
+{
+#endif
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(3,eval_if,(C,F1,F2))
+};
+
+// (almost) copy & paste in order to save one more 
+// recursively nested template instantiation to user
+template<
+      bool C
+    , typename F1
+    , typename F2
+    >
+struct eval_if_c
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
+     || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
+        && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
+        )
+{
+    typedef typename if_c<C,F1,F2>::type f_;
+    typedef typename f_::type type;
+#else
+    : if_c<C,F1,F2>::type
+{
+#endif
+};
+
+BOOST_MPL_AUX_NA_SPEC(3, eval_if)
+
+}}
+
+#endif // BOOST_MPL_EVAL_IF_HPP_INCLUDED
-- 
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