Adjust some more code that was depending on the function and delegate calling conventions being equal. There's also an instance in `tango.text.convert.Layout` that should be adjusted: {{{ Index: tango/text/convert/Layout.d =================================================================== --- tango/text/convert/Layout.d (revision 4578) +++ tango/text/convert/Layout.d (working copy) -660,8 +660,12 @@ case TypeCode.STRUCT: auto s = cast(TypeInfo_Struct) type; - if (s.xtoString) - return Utf.fromString8 (s.xtoString(p), result); + if (s.xtoString) { + char[] delegate() toString; + toString.ptr = p; + toString.funcptr = cast(char[] function()) s.xtoString; + return Utf.fromString8 (toString(), result); + } goto default; case TypeCode.INTERFACE: }}}

--- a/tests/mini/vararg6.d	Sun May 31 15:07:04 2009 +0200
+++ b/tests/mini/vararg6.d	Sun May 31 15:27:01 2009 +0200
@@ -1,5 +1,5 @@
 // tries to implement a fairly complete variadic print function
-module tangotests.vararg3;
+module tangotests.vararg6;
 
 extern(C) int printf(char*, ...);
 
@@ -179,7 +179,10 @@
     {
         if (sti.xtoString !is null)
         {
-            char[] str = sti.xtoString(arg);
+            char[] delegate() toString;
+            toString.ptr = arg;
+            toString.funcptr = sti.xtoString;
+            char[] str = toString();
             printf("%.*s", str.length, str.ptr);
         }
         else