diff --git a/iterator/infix.hpp b/iterator/infix.hpp
index 2c6c27db..5d943e21 100644
--- a/iterator/infix.hpp
+++ b/iterator/infix.hpp
@@ -75,7 +75,7 @@ namespace cruft::iterator {
         operator<< (std::ostream &os, const infix_t<ContainerT,CharT> &val)
         {
             using iterator_type  = std::decay_t<
-                decltype(std::begin (std::declval<ContainerT> ()))
+                decltype(std::begin (val._container))
             >;
             using value_type = typename std::iterator_traits<iterator_type >::value_type;
 
@@ -87,8 +87,7 @@ namespace cruft::iterator {
 
             return os;
         }
-
-    };
+    }
 
 
     /// a helper function that returns an object that will use a
@@ -100,18 +99,24 @@ namespace cruft::iterator {
     /// std::cout << cruft::make_infix (container) << '\n';
     template <typename ContainerT, typename CharT = char>
     auto
-    make_infix (const ContainerT &_container, const CharT *_delimiter = ", ")
+    make_infix (ContainerT const &_container, const CharT *_delimiter = ", ")
     {
         return detail::infix_t<ContainerT,CharT> { _container, _delimiter };
     }
 
 
-    template <typename ValueT, size_t CountV>
+    template <typename ValueT, size_t CountV, typename CharT>
     auto
-    make_infix (const ValueT (&val)[CountV])
+    make_infix (const ValueT (&val)[CountV], CharT const *delimiter = ", ")
     {
-        return make_infix (cruft::view {val});
+        return make_infix (cruft::view {val}, delimiter);
     }
 
 
+    template <typename ValueT, size_t CountV, typename CharT>
+    auto
+    make_infix (ValueT (&val)[CountV], CharT const *delimiter = ", ")
+    {
+        return make_infix (cruft::view {val}, delimiter);
+    }
 }