From ad6adf173e52f4498a51aba4c7edbd33fbdbd793 Mon Sep 17 00:00:00 2001
From: Jason Newcomb <jsnewcomb@pm.me>
Date: Mon, 27 Mar 2023 15:14:23 -0400
Subject: [PATCH] Move `CastInPlace` behind a feature gate.

---
 Cargo.toml | 9 +++++++--
 src/lib.rs | 2 ++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 9d6be11..05d7274 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,8 +19,11 @@ extern_crate_std = ["extern_crate_alloc"]
 zeroable_maybe_uninit = []
 zeroable_atomics = []
 min_const_generics = []
-wasm_simd = [] # Until >= 1.54.0 is MSRV this is an off-by-default feature.
-aarch64_simd = [] # Until >= 1.59.0 is MSRV this is an off-by-default feature.
+
+# Off-by-default while bytemuck's MSRV is raised.
+wasm_simd = [] # Requires MSRV >= 1.54.0.
+aarch64_simd = [] # Requires MSRV >= 1.59.0.
+unified_cast = [] # Requires MSRV >= 1.65.0.
 
 # Do not use if you can avoid it, because this is unsound.
 unsound_ptr_pod_impl = []
@@ -42,6 +45,7 @@ features = [
   "zeroable_atomics",
   "min_const_generics",
   "wasm_simd",
+  "unified_cast",
 ]
 
 [package.metadata.playground]
@@ -54,4 +58,5 @@ features = [
   "zeroable_atomics",
   "min_const_generics",
   "wasm_simd",
+  "unified_cast",
 ]
diff --git a/src/lib.rs b/src/lib.rs
index 2902c1d..4a755ea 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -125,7 +125,9 @@ pub use offset_of::*;
 mod transparent;
 pub use transparent::*;
 
+#[cfg(feature = "unified_cast")]
 mod cast;
+#[cfg(feature = "unified_cast")]
 pub use cast::CastInPlace;
 
 #[cfg(feature = "derive")]