mpl::for_each works on nvidia gpu's

include/boost/mpl/assert.hpp

@@ -25,6 +25,7 @@
 #include <boost/mpl/aux_/config/dtp.hpp>
 #include <boost/mpl/aux_/config/gcc.hpp>
 #include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/gpu.hpp>
 #include <boost/mpl/aux_/config/static_constant.hpp>
 #include <boost/mpl/aux_/config/pp_counter.hpp>
 #include <boost/mpl/aux_/config/workaround.hpp>
@@ -55,7 +56,7 @@
 // and GCC (which issues "unused variable" warnings when static constants are used 
 // at a function scope)
 #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \
-    || (BOOST_MPL_CFG_GCC != 0)
+    || (BOOST_MPL_CFG_GCC != 0) || (BOOST_MPL_CFG_GPU != 0)
 #   define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) enum { expr }
 #else
 #   define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) BOOST_STATIC_CONSTANT(T, expr)

include/boost/mpl/aux_/config/gpu.hpp

@@ -0,0 +1,35 @@
+
+#ifndef BOOST_MPL_AUX_CONFIG_GPU_HPP_INCLUDED
+#define BOOST_MPL_AUX_CONFIG_GPU_HPP_INCLUDED
+
+// Copyright Eric Niebler 2014
+//
+// 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.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/config.hpp>
+
+#if !defined(BOOST_MPL_CFG_GPU_ENABLED) \
+
+#   define BOOST_MPL_CFG_GPU_ENABLED BOOST_GPU_ENABLED
+
+#endif
+
+#if defined __CUDACC__
+
+#    define BOOST_MPL_CFG_GPU 1
+
+#else
+
+#    define BOOST_MPL_CFG_GPU 0
+
+#endif
+
+#endif // BOOST_MPL_AUX_CONFIG_GPU_HPP_INCLUDED

include/boost/mpl/aux_/config/operators.hpp

@@ -24,6 +24,7 @@
         || BOOST_WORKAROUND(__EDG_VERSION__, <= 245) \
         || BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, <= 0x0295) \
         || BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(600)) \
+        || BOOST_WORKAROUND(__NVCC__, BOOST_TESTED_AT(1)) \
         )
 
 #   define BOOST_MPL_CFG_USE_OPERATORS_OVERLOADING

include/boost/mpl/aux_/unwrap.hpp

@@ -16,10 +16,12 @@
 // $Revision$
 
 #include <boost/ref.hpp>
+#include <boost/mpl/aux_/config/gpu.hpp>
 
 namespace boost { namespace mpl { namespace aux {
 
 template< typename F >
+BOOST_MPL_CFG_GPU_ENABLED
 inline
 F& unwrap(F& f, long)
 {
@@ -27,6 +29,7 @@ F& unwrap(F& f, long)
 }
 
 template< typename F >
+BOOST_MPL_CFG_GPU_ENABLED
 inline
 F&
 unwrap(reference_wrapper<F>& f, int)
@@ -35,6 +38,7 @@ unwrap(reference_wrapper<F>& f, int)
 }
 
 template< typename F >
+BOOST_MPL_CFG_GPU_ENABLED
 inline
 F&
 unwrap(reference_wrapper<F> const& f, int)

include/boost/mpl/for_each.hpp

@@ -22,6 +22,7 @@
 #include <boost/mpl/deref.hpp>
 #include <boost/mpl/identity.hpp>
 #include <boost/mpl/assert.hpp>
+#include <boost/mpl/aux_/config/gpu.hpp>
 #include <boost/mpl/aux_/unwrap.hpp>
 
 #include <boost/type_traits/is_same.hpp>
@@ -40,6 +41,7 @@ struct for_each_impl
         , typename TransformFunc
         , typename F
         >
+    BOOST_MPL_CFG_GPU_ENABLED
     static void execute(
           Iterator*
         , LastIterator*
@@ -59,6 +61,7 @@ struct for_each_impl<false>
         , typename TransformFunc
         , typename F
         >
+    BOOST_MPL_CFG_GPU_ENABLED
     static void execute(
           Iterator*
         , LastIterator*
@@ -89,6 +92,7 @@ template<
     , typename TransformOp
     , typename F
     >
+BOOST_MPL_CFG_GPU_ENABLED
 inline
 void for_each(F f, Sequence* = 0, TransformOp* = 0)
 {
@@ -105,6 +109,7 @@ template<
       typename Sequence
     , typename F
     >
+BOOST_MPL_CFG_GPU_ENABLED
 inline
 void for_each(F f, Sequence* = 0)
 {