Add is_device_asserts

Author: lakshayg

include/boost/compute/algorithm/fill.hpp

@@ -28,6 +28,8 @@
 #include <boost/compute/iterator/discard_iterator.hpp>
 #include <boost/compute/detail/is_buffer_iterator.hpp>
 #include <boost/compute/detail/iterator_range_size.hpp>
+#include <boost/compute/type_traits/is_device_iterator.hpp>
+
 
 namespace boost {
 namespace compute {
@@ -281,6 +283,7 @@ inline void fill(BufferIterator first,
                  const T &value,
                  command_queue &queue = system::default_queue())
 {
+    BOOST_STATIC_ASSERT(is_device_iterator<BufferIterator>::value);
     size_t count = detail::iterator_range_size(first, last);
     if(count == 0){
         return;

include/boost/compute/algorithm/fill_n.hpp

@@ -11,9 +11,12 @@
 #ifndef BOOST_COMPUTE_ALGORITHM_FILL_N_HPP
 #define BOOST_COMPUTE_ALGORITHM_FILL_N_HPP
 
+#include <boost/static_assert.hpp>
+
 #include <boost/compute/system.hpp>
 #include <boost/compute/command_queue.hpp>
 #include <boost/compute/algorithm/fill.hpp>
+#include <boost/compute/type_traits/is_device_iterator.hpp>
 
 namespace boost {
 namespace compute {
@@ -29,6 +32,7 @@ inline void fill_n(BufferIterator first,
                    const T &value,
                    command_queue &queue = system::default_queue())
 {
+    BOOST_STATIC_ASSERT(is_device_iterator<BufferIterator>::value);
     ::boost::compute::fill(first, first + count, value, queue);
 }
 

include/boost/compute/algorithm/iota.hpp

@@ -11,10 +11,13 @@
 #ifndef BOOST_COMPUTE_ALGORITHM_IOTA_HPP
 #define BOOST_COMPUTE_ALGORITHM_IOTA_HPP
 
+#include <boost/static_assert.hpp>
+
 #include <boost/compute/system.hpp>
 #include <boost/compute/command_queue.hpp>
 #include <boost/compute/algorithm/copy.hpp>
 #include <boost/compute/iterator/counting_iterator.hpp>
+#include <boost/compute/type_traits/is_device_iterator.hpp>
 
 namespace boost {
 namespace compute {
@@ -34,6 +37,7 @@ inline void iota(BufferIterator first,
                  const T &value,
                  command_queue &queue = system::default_queue())
 {
+    BOOST_STATIC_ASSERT(is_device_iterator<BufferIterator>::value);
     T count = static_cast<T>(detail::iterator_range_size(first, last));
 
     copy(