Suppress gcc warning on privates-only class

Since gcc 9 it warns about is_streamable to have only private methods. Add explicit default ctor instead of suppression
fmtlib · Dec 9, 2020 · f0b7578 · f0b7578
1 parent a6fafe2
commit f0b7578
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/include/fmt/ostream.h b/include/fmt/ostream.h
@@ -85,6 +85,8 @@ template <typename T, typename Char> class is_streamable {
   using result = decltype(test<T>(0));
 
  public:
+  is_streamable() = default;
+
   static const bool value = result::value;
 };