fix "this" is null warning

profezzorn · Dec 30, 2024 · db8fdbc · db8fdbc
1 parent 0473f4f
commit db8fdbc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/common/stdout.h b/common/stdout.h
@@ -37,7 +37,7 @@ template<typename T, typename X = void> struct PrintHelper {
   static void out(Print& p, T& x) { p.print(x); }
 };
 
-template<typename T> struct PrintHelper<T, decltype(((T*)0)->printTo(*(Print*)0))> {
+template<typename T> struct PrintHelper<T, decltype(std::declval<T*>()->printTo(*(Print*)0))> {
   static void out(Print& p, T& x) { x.printTo(p); }
 };