From ed7171099bf5e7483cb727baa1afd727e912ed06 Mon Sep 17 00:00:00 2001
From: Andrey Semashev <andrey.semashev@gmail.com>
Date: Fri, 6 Feb 2026 14:33:34 +0300
Subject: [PATCH] Silence MSVC warning about unreferenced formal parameter.

Closes https://github.com/boostorg/thread/pull/382.
---
 src/win32/thread.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/win32/thread.cpp b/src/win32/thread.cpp
index 45c2651f..fd49f17b 100644
--- a/src/win32/thread.cpp
+++ b/src/win32/thread.cpp
@@ -577,10 +577,18 @@ namespace boost
                 } Reason;
             } REASON_CONTEXT, *PREASON_CONTEXT;
             typedef BOOL (WINAPI *setwaitabletimerex_t)(HANDLE, const LARGE_INTEGER *, LONG, PTIMERAPCROUTINE, LPVOID, PREASON_CONTEXT, ULONG);
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4100) // unreferenced formal parameter
+#endif
             static inline BOOL WINAPI SetWaitableTimerEx_emulation(HANDLE hTimer, const LARGE_INTEGER *lpDueTime, LONG lPeriod, PTIMERAPCROUTINE pfnCompletionRoutine, LPVOID lpArgToCompletionRoutine, PREASON_CONTEXT WakeContext, ULONG TolerableDelay)
             {
                 return SetWaitableTimer(hTimer, lpDueTime, lPeriod, pfnCompletionRoutine, lpArgToCompletionRoutine, FALSE);
             }
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
 #ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable: 6387) // MSVC sanitiser warns that GetModuleHandleA() might fail