1 files changed, 6 insertions, 5 deletions
diff --git a/src/util/callback.h b/src/util/callback.h
index a2c9477..ef4e815 100644
--- a/src/util/callback.h
+++ b/src/util/callback.h
@@ -1,16 +1,17 @@
 #pragma once
 #include "typedef.h"
 
+template <typename T> struct __strip_ref { using type = T; };
+template <typename T> struct __strip_ref<T&> { using type = T; };
+template <typename T> struct __strip_ref<T&&> { using type = T; };
+template <typename R, typename... A> struct __strip_ref<R(A...)> { using type = R(*)(A...); };
+template <typename R, typename... A> struct __strip_ref<R(&)(A...)> { using type = R(*)(A...); };
+
 template <typename T>
 struct FN;
 // voodoo
 template <typename RET, typename... ARGS>
 struct FN<RET(ARGS...)> {
-  template <typename T> struct __strip_ref { using type = T; };
-  template <typename T> struct __strip_ref<T&> { using type = T; };
-  template <typename T> struct __strip_ref<T&&> { using type = T; };
-  template <typename R, typename... A> struct __strip_ref<R(A...)> { using type = R(*)(A...); };
-  template <typename R, typename... A> struct __strip_ref<R(&)(A...)> { using type = R(*)(A...); };
 
   static const unsigned int BUF_SIZE = 32;