add function to create an object with a va_list pointer instead of its argument list. Obviously the va_list must contain the correct values for the class constructor.

include/class/interface/class.h

@@ -52,6 +52,13 @@ extern void * classClone(void *);
 #define delete(object)		classDelete((void **)&(object))
 #define clone(object)		classClone((void *)(object))
 
+/**
+ * With this one we can create a new instance via a
+ * intermidiary that gets the arguments.
+ */
+extern void * classNewParams(class_ptr, va_list *);
+#define newParams(class,args) classNewParams(_##class, args)
+
 #endif // __CLASS_INTERFACE_CLASS_H__
 
 // vim: set ts=4 sw=4:

src/class/interface/i_class.c

@@ -37,18 +37,15 @@ struct interface i_Class = {
 };
 
 void *
-classNew(class_ptr class, ...)
+classNewParams(class_ptr class, va_list * params)
 {
 	void *  object = memCalloc(1, class->object_size + sizeof(void*));
-	va_list params;
 	int     ret;
 
 	* (class_ptr *)object = class;
 	object += sizeof(void*);
 
-	va_start(params, class);
-	RETCALL(object, Class, ctor, ret, &params);
-	va_end(params);
+	RETCALL(object, Class, ctor, ret, params);
 
 	if (-1 == ret) {
 		classDelete(&object);
@@ -57,6 +54,19 @@ classNew(class_ptr class, ...)
 	return object;
 }
 
+void *
+classNew(class_ptr class, ...)
+{
+	va_list   params;
+	void    * object;
+
+	va_start(params, class);
+	object = classNewParams(class, &params);
+	va_end(params);
+
+	return object;
+}
+
 void
 classDelete(void ** object)
 {