From 60f3a9d3449ec64e3149486011cd8a8f19fb5aca Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Sun, 23 Jul 2023 06:17:10 +0000
Subject: [PATCH] math/fp: negation operator declaration

---
 math/fp.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/math/fp.hpp b/math/fp.hpp
index 7b5b6eb..7969aa7 100644
--- a/math/fp.hpp
+++ b/math/fp.hpp
@@ -41,7 +41,7 @@ struct fp
     return value >> 16;
   }
 
-  constexpr inline fp<T, I, B> operator-()
+  constexpr inline fp<T, I, B> operator-() const
   {
     return fp(-value, fp_raw_tag{});
   }