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Diffstat (limited to 'boost/signals2/preprocessed_signal.hpp')
| -rw-r--r-- | boost/signals2/preprocessed_signal.hpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/boost/signals2/preprocessed_signal.hpp b/boost/signals2/preprocessed_signal.hpp index 28471ba4ae..794c1be67e 100644 --- a/boost/signals2/preprocessed_signal.hpp +++ b/boost/signals2/preprocessed_signal.hpp @@ -22,6 +22,8 @@ #include <boost/preprocessor/repetition.hpp> #include <boost/signals2/detail/preprocessed_arg_type.hpp> #include <boost/type_traits/add_reference.hpp> +#include <boost/type_traits/is_void.hpp> +#include <boost/utility/enable_if.hpp> #define BOOST_PP_ITERATION_LIMITS (0, BOOST_SIGNALS2_MAX_ARGS) #define BOOST_PP_FILENAME_1 <boost/signals2/detail/signal_template.hpp> |