From 702d55597a35b76c1313936d34871b5a708086f7 Mon Sep 17 00:00:00 2001
From: Stanislav Tkach <stanislav.tkach@gmail.com>
Date: Sun, 9 Feb 2025 21:42:56 +0100
Subject: [PATCH] Hide 'impl_new_from_pseudo_default!(Box<T>, T)' under the std
 feature

---
 src/implementations/pointers.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/implementations/pointers.rs b/src/implementations/pointers.rs
index fe9a0b2..c7f5e82 100644
--- a/src/implementations/pointers.rs
+++ b/src/implementations/pointers.rs
@@ -4,7 +4,10 @@ use core::{
     mem::ManuallyDrop,
 };
 
+// Box is only available with alloc.
+#[cfg(feature = "std")]
 impl_new_from_pseudo_default!(Box<T>, T);
+
 impl_new_from_pseudo_default!(UnsafeCell<T>, T);
 impl_new_from_pseudo_default!(RefCell<T>, T);
 impl_new_from_pseudo_default!(ManuallyDrop<T>, T);