Update boost to 1.68.

[lyx.git] / 3rdparty / boost / boost / parameter / aux_ / arg_list.hpp

diff --git a/3rdparty/boost/boost/parameter/aux_/arg_list.hpp b/3rdparty/boost/boost/parameter/aux_/arg_list.hpp
index 71e4da271e7b53c0d4c7580911b799d1b175e74a..721ce040043a66f85a63610af6492fbcf1547167 100644 (file)
--- a/3rdparty/boost/boost/parameter/aux_/arg_list.hpp
+++ b/3rdparty/boost/boost/parameter/aux_/arg_list.hpp
@@ -339,6 +339,7 @@ struct arg_list : Next
     template <class Default>
     reference operator[](lazy_default<key_type, Default>) const
     {
+        BOOST_MPL_ASSERT_NOT((holds_maybe));
         return arg.value;
     }