fix: fix optional_ref at c++20

LiteLDev · Jun 20, 2024 · 8ea7b15 · 8ea7b15
1 parent 46ac97c
commit 8ea7b15
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/mc/common/wrapper/optional_ref.h b/src/mc/common/wrapper/optional_ref.h
@@ -113,6 +113,8 @@ class optional_ref {
     [[nodiscard]] constexpr decltype(auto) rbegin() const { return (get().rbegin()); }
     [[nodiscard]] constexpr decltype(auto) crend() const { return (get().crend()); }
     [[nodiscard]] constexpr decltype(auto) crbegin() const { return (get().crbegin()); }
+
+#if _HAS_CXX23
     template <class Fn>
     constexpr auto and_then(Fn&& fn) const {
         using Ret = std::invoke_result_t<Fn, T&>;
@@ -153,6 +155,7 @@ class optional_ref {
             return std::invoke(std::forward<Fn>(fn));
         }
     }
+#endif // _HAS_CXX23
 };
 // NOLINTEND
 template <typename T>