From befbb094a058342ad10686090b1c073033a20b43 Mon Sep 17 00:00:00 2001
From: Andrew Belt <andrewpbelt@gmail.com>
Date: Thu, 25 Apr 2024 20:18:28 -0400
Subject: [PATCH] Fix warning when NDEBUG macro is enabled.

---
 include/mutex.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/mutex.hpp b/include/mutex.hpp
index d924c9f9..030874e3 100644
--- a/include/mutex.hpp
+++ b/include/mutex.hpp
@@ -18,6 +18,7 @@ struct SharedMutex {
 
 	SharedMutex() {
 		int err = pthread_rwlock_init(&rwlock, NULL);
+		(void) err;
 		assert(!err);
 	}
 	~SharedMutex() {
@@ -26,6 +27,7 @@ struct SharedMutex {
 
 	void lock() {
 		int err = pthread_rwlock_wrlock(&rwlock);
+		(void) err;
 		assert(!err);
 	}
 	/** Returns whether the lock was acquired. */
@@ -34,11 +36,13 @@ struct SharedMutex {
 	}
 	void unlock() {
 		int err = pthread_rwlock_unlock(&rwlock);
+		(void) err;
 		assert(!err);
 	}
 
 	void lock_shared() {
 		int err = pthread_rwlock_rdlock(&rwlock);
+		(void) err;
 		assert(!err);
 	}
 	/** Returns whether the lock was acquired. */