Merge pull request boostorg#201 from mxc-commons/fix_alternative

Fix for spirit_v2 qi/alternative test case
MihaiBabiac · Aug 17, 2016 · 4c5b976 · 4c5b976
2 parents 0f7b47d + b2a0b2c
commit 4c5b976
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/include/boost/spirit/home/qi/detail/alternative_function.hpp b/include/boost/spirit/home/qi/detail/alternative_function.hpp
@@ -23,7 +23,7 @@ namespace boost { namespace spirit { namespace qi { namespace detail
     template <typename Variant, typename Expected>
     struct find_substitute
     {
-        // Get the typr from the variant that can be a substitute for Expected.
+        // Get the type from the variant that can be a substitute for Expected.
         // If none is found, just return Expected
 
         typedef Variant variant_type;
@@ -138,8 +138,9 @@ namespace boost { namespace spirit { namespace qi { namespace detail
         template <typename Component>
         bool call(Component const& component, mpl::false_) const
         {
+            // fix for alternative.cpp test case, FHE 2016-07-28
             return call_optional_or_variant(
-                component, spirit::traits::not_is_variant<Attribute, qi::domain>());
+                component, mpl::not_<spirit::traits::not_is_optional<Attribute, qi::domain>>());
         }
 
         template <typename Component>