From e2418206daae579cb3ff8272aa7967c58c6eba83 Mon Sep 17 00:00:00 2001
From: skypjack <michele.caini@gmail.com>
Date: Fri, 10 Apr 2026 16:09:19 +0200
Subject: [PATCH] stl: std::is_reference_v

---
 src/entt/meta/meta.hpp       | 4 ++--
 src/entt/meta/policy.hpp     | 4 ++--
 src/entt/stl/type_traits.hpp | 1 +
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/entt/meta/meta.hpp b/src/entt/meta/meta.hpp
index 51a0c7b1d..4fd9604e3 100644
--- a/src/entt/meta/meta.hpp
+++ b/src/entt/meta/meta.hpp
@@ -494,7 +494,7 @@ public:
      */
     template<typename Type>
     [[nodiscard]] meta_any allow_cast() const {
-        if constexpr(!std::is_reference_v<Type> || stl::is_const_v<stl::remove_reference_t<Type>>) {
+        if constexpr(!stl::is_reference_v<Type> || stl::is_const_v<stl::remove_reference_t<Type>>) {
             if(storage.has_value<stl::remove_cvref_t<Type>>()) {
                 return as_ref();
             } else if(*this) {
@@ -530,7 +530,7 @@ public:
      */
     template<typename Type>
     [[nodiscard]] bool allow_cast() {
-        if constexpr(std::is_reference_v<Type> && !stl::is_const_v<stl::remove_reference_t<Type>>) {
+        if constexpr(stl::is_reference_v<Type> && !stl::is_const_v<stl::remove_reference_t<Type>>) {
             return allow_cast<const stl::remove_reference_t<Type> &>() && (storage.policy() != any_policy::cref);
         } else {
             if(storage.has_value<stl::remove_cvref_t<Type>>()) {
diff --git a/src/entt/meta/policy.hpp b/src/entt/meta/policy.hpp
index 206b20a84..b3a9f2b11 100644
--- a/src/entt/meta/policy.hpp
+++ b/src/entt/meta/policy.hpp
@@ -33,7 +33,7 @@ struct as_void_t final: private internal::meta_policy {
 struct as_ref_t final: private internal::meta_policy {
     /*! @cond ENTT_INTERNAL */
     template<typename Type>
-    static constexpr bool value = std::is_reference_v<Type> && !stl::is_const_v<stl::remove_reference_t<Type>>;
+    static constexpr bool value = stl::is_reference_v<Type> && !stl::is_const_v<stl::remove_reference_t<Type>>;
     /*! @endcond */
 };
 
@@ -41,7 +41,7 @@ struct as_ref_t final: private internal::meta_policy {
 struct as_cref_t final: private internal::meta_policy {
     /*! @cond ENTT_INTERNAL */
     template<typename Type>
-    static constexpr bool value = std::is_reference_v<Type>;
+    static constexpr bool value = stl::is_reference_v<Type>;
     /*! @endcond */
 };
 
diff --git a/src/entt/stl/type_traits.hpp b/src/entt/stl/type_traits.hpp
index 19c1db23e..a86cb82df 100644
--- a/src/entt/stl/type_traits.hpp
+++ b/src/entt/stl/type_traits.hpp
@@ -41,6 +41,7 @@ using std::is_nothrow_destructible_v;
 using std::is_nothrow_invocable_v;
 using std::is_nothrow_move_constructible_v;
 using std::is_pointer_v;
+using std::is_reference_v;
 using std::is_same_v;
 using std::is_trivially_destructible_v;
 using std::is_void_v;