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-rw-r--r--boost/proto/transform/detail/lazy.hpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/boost/proto/transform/detail/lazy.hpp b/boost/proto/transform/detail/lazy.hpp
index 26a9c5b3d0..fbd13651cf 100644
--- a/boost/proto/transform/detail/lazy.hpp
+++ b/boost/proto/transform/detail/lazy.hpp
@@ -53,6 +53,27 @@
{};
};
+ #if N > 0
+ template<typename Object BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
+ struct lazy<Object(BOOST_PP_ENUM_PARAMS(N, A)...)>
+ : transform<lazy<Object(BOOST_PP_ENUM_PARAMS(N, A)...)> >
+ {
+ template<typename Expr, typename State, typename Data>
+ struct impl
+ : lazy<
+ typename detail::expand_pattern<
+ proto::arity_of<Expr>::value
+ , BOOST_PP_CAT(A, BOOST_PP_DEC(N))
+ , detail::BOOST_PP_CAT(expand_pattern_rest_, BOOST_PP_DEC(N))<
+ Object
+ BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_DEC(N), A)
+ >
+ >::type
+ >::template impl<Expr, State, Data>
+ {};
+ };
+ #endif
+
#undef N
#endif