Imported Upstream version 1.57.0

[platform/upstream/boost.git] / boost / preprocessor / array / to_tuple.hpp

diff --git a/boost/preprocessor/array/to_tuple.hpp b/boost/preprocessor/array/to_tuple.hpp
index eb83274..0d8defa 100644 (file)
--- a/boost/preprocessor/array/to_tuple.hpp
+++ b/boost/preprocessor/array/to_tuple.hpp
@@ -14,9 +14,20 @@
 # define BOOST_PREPROCESSOR_ARRAY_TO_TUPLE_HPP
 #
 # include <boost/preprocessor/array/data.hpp>
+# include <boost/preprocessor/array/size.hpp>
+# include <boost/preprocessor/control/if.hpp>
 #
 # /* BOOST_PP_ARRAY_TO_TUPLE */
 #
-# define BOOST_PP_ARRAY_TO_TUPLE BOOST_PP_ARRAY_DATA
+#    define BOOST_PP_ARRAY_TO_TUPLE(array) \
+               BOOST_PP_IF \
+                       ( \
+                       BOOST_PP_ARRAY_SIZE(array), \
+                       BOOST_PP_ARRAY_DATA, \
+                       BOOST_PP_ARRAY_TO_TUPLE_EMPTY \
+                       ) \
+               (array) \
+/**/
+#    define BOOST_PP_ARRAY_TO_TUPLE_EMPTY(array)
 #
 # endif