From d9768cd0315b0415d20818de9c897c6168c95b78 Mon Sep 17 00:00:00 2001
From: pacien
Date: Fri, 23 Nov 2018 12:57:00 +0100
Subject: Split bitstream into bitreader and bitwriter

---
 src/integers.nim | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/integers.nim')

diff --git a/src/integers.nim b/src/integers.nim
index 1b9121c..1f83488 100644
--- a/src/integers.nim
+++ b/src/integers.nim
@@ -22,3 +22,10 @@ proc `/^`*[T: Natural](x, y: T): T =
 
 proc truncateToUint8*(x: SomeUnsignedInt): uint8 =
   (x and wordBitMask).uint8
+
+iterator chunks*(totalBitLength: int, chunkType: typedesc[SomeInteger]): tuple[index: int, chunkBitLength: int] =
+  let chunkBitLength = sizeof(chunkType) * wordBitLength
+  let wordCount = totalBitLength div chunkBitLength
+  for i in 0..<(wordCount): yield (i, chunkBitLength)
+  let remainder = totalBitLength mod chunkBitLength
+  if remainder > 0: yield (wordCount, remainder)
-- 
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