Fix build of "Implement slot<R(Arg...)> with variadic template"

fanc999-1 · fanc999-1 · commit ac79b551afd8 · 2016-06-17T15:36:41.000+08:00
* sigc++/functors/macros/slot.h.m4: Fix the use of operator() in the variadic templates usage in the base slot_call as the syntax differs between compilers for this call. This fixes the build of the tests and any items that makes use of sigc++/functors/slot.h on non-GCC, specifically Visual Studio 2013 and 2015. https://bugzilla.gnome.org/show_bug.cgi?id=767777
diff --git a/sigc++/functors/macros/slot.h.m4 b/sigc++/functors/macros/slot.h.m4
@@ -475,7 +475,7 @@ struct slot_call
     {
       using typed_slot = typed_slot_rep<T_functor>;
       typed_slot *typed_rep = static_cast<typed_slot*>(rep);
-      return (typed_rep->functor_).template operator()<type_trait_take_t<T_arg>...>
+      return (typed_rep->functor_).SIGC_WORKAROUND_OPERATOR_PARENTHESES<type_trait_take_t<T_arg>...>
                (a_...);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -475,7 +475,7 @@ struct slot_call`
`475`	`475`	`{`
`476`	`476`	`using typed_slot = typed_slot_rep<T_functor>;`
`477`	`477`	`typed_slot typed_rep = static_cast<typed_slot>(rep);`
`478`		`- return (typed_rep->functor_).template operator()<type_trait_take_t<T_arg>...>`
	`478`	`+ return (typed_rep->functor_).SIGC_WORKAROUND_OPERATOR_PARENTHESES<type_trait_take_t<T_arg>...>`
`479`	`479`	`(a_...);`
`480`	`480`	`}`
`481`	`481`