Less wasteful inclusion.

2019-09-26 16:07:03 -04:00
parent 684e9991ec
commit 2f9be1086a
1 changed files with 1 additions and 1 deletions
--- a/include/boost/preprocessor/facilities/is_empty_variadic.hpp
+++ b/include/boost/preprocessor/facilities/is_empty_variadic.hpp
@ -64,7 +64,7 @@
    (__VA_ARGS__) \
 /**/
 #define BOOST_PP_IS_EMPTY_ZERO(...) 0
-#if BOOST_PP_VARIADIC_OPT()
+# if defined(__cplusplus) && __cplusplus > 201703L
 #define BOOST_PP_IS_EMPTY_FUNCTION2(...) \
    __VA_OPT__(0,) 1 \
 /**/