From 1633d9af9b42420966e2c67c28e4b6ea9b593d6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gu=C3=B0ni=20M=C3=A1r=20Gilbert?= <gudni.m.g@gmail.com>
Date: Fri, 2 Jun 2023 19:31:11 +0000
Subject: [PATCH] Optimise CircularIndex count

No change in memory
---
 src/hal/circular_buffer.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/hal/circular_buffer.h b/src/hal/circular_buffer.h
index 55d9bf0..1620584 100644
--- a/src/hal/circular_buffer.h
+++ b/src/hal/circular_buffer.h
@@ -61,15 +61,8 @@ public:
     }
 
     /// @returns number of elements in the buffer
-    /// @@TODO better solution if it exists
     inline index_t count() const {
-        index_t i = tail;
-        index_t c = 0;
-        while (i != head) {
-            i = next(i);
-            ++c;
-        }
-        return c;
+        return head - tail;
     }
 
 protected: