From 50562b515a771cfc443557ee8e2dceee59207d52 Mon Sep 17 00:00:00 2001
From: Zahary Karadjov <zahary@gmail.com>
Date: Wed, 29 Jan 2020 02:42:50 +0200
Subject: [PATCH] Add bitseqs.bitsLen(openarray)

---
 stew/bitseqs.nim | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/stew/bitseqs.nim b/stew/bitseqs.nim
index 3f5dd42..3092d68 100644
--- a/stew/bitseqs.nim
+++ b/stew/bitseqs.nim
@@ -24,13 +24,16 @@ type
   BitArray*[bits: static int] = object
     bytes*: array[(bits + 7) div 8, byte]
 
-func len*(s: BitSeq): int =
+func bitsLen*(bytes: openarray[byte]): int =
   let
-    bytesCount = s.Bytes.len
-    lastByte = s.Bytes[bytesCount - 1]
+    bytesCount = bytes.len
+    lastByte = bytes[bytesCount - 1]
     markerPos = log2trunc(lastByte)
 
-  Bytes(s).len * 8 - (8 - markerPos)
+  bytesCount * 8 - (8 - markerPos)
+
+template len*(s: BitSeq): int =
+  bitsLen(Bytes s)
 
 template len*(a: BitArray): int =
   a.bits