From 014401899280a15b8b05312a4f91e379b875b634 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Fri, 26 Apr 2019 10:27:22 +1000
Subject: [PATCH] bitwise: don't allow full rotation

---
 bitwise.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bitwise.hpp b/bitwise.hpp
index 92ff5565..11cff0e7 100644
--- a/bitwise.hpp
+++ b/bitwise.hpp
@@ -24,7 +24,7 @@ namespace cruft {
     constexpr T
     rotatel [[gnu::pure]] (const T value, std::size_t magnitude)
     {
-        CHECK_LE (magnitude, sizeof (value) * 8);
+        CHECK_LT (magnitude, sizeof (value) * 8u);
 
         return (value << magnitude) | (value >> (sizeof (value) * 8 - magnitude));
     }
@@ -38,7 +38,7 @@ namespace cruft {
     constexpr T
     rotater [[gnu::pure]] (const T value, std::size_t magnitude)
     {
-        CHECK_LE (magnitude, sizeof (value) * 8);
+        CHECK_LT (magnitude, sizeof (value) * 8);
 
         return (value >> magnitude) | (value << (sizeof (value) * 8 - magnitude));
     }