From eb783d9632e054f318ac35613408a3d13774d67f Mon Sep 17 00:00:00 2001
From: Aron Parker <hl3mukkel@gmail.com>
Date: Fri, 10 Jun 2022 14:33:19 +0200
Subject: [PATCH] Incorporate warning for potential exit code ambiguities

---
 library/std/src/os/windows/process.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/library/std/src/os/windows/process.rs b/library/std/src/os/windows/process.rs
index 027a901c08c5..2da1b159d723 100644
--- a/library/std/src/os/windows/process.rs
+++ b/library/std/src/os/windows/process.rs
@@ -203,6 +203,10 @@ impl ChildExt for process::Child {
 pub trait ExitCodeExt: Sealed {
     /// Creates a new `ExitCode` from the raw underlying `u32` return value of
     /// a process.
+    ///
+    /// The exit code should not be 259, as this conflicts with the `STILL_ACTIVE`
+    /// macro returned from the `GetExitCodeProcess` function to signal that the
+    /// process has yet to run to completion.
     #[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
     fn from_raw(raw: u32) -> Self;
 }