From 55dd38c67c9d77f387098529e1ee0f61ca223959 Mon Sep 17 00:00:00 2001
From: mratsim <mamy.ratsimbazafy_dev@gadz.org>
Date: Fri, 30 Mar 2018 14:25:04 +0200
Subject: [PATCH] Fix borrow border case: see
 https://github.com/status-im/mpint/issues/10

---
 src/private/uint_binary_ops.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/private/uint_binary_ops.nim b/src/private/uint_binary_ops.nim
index a46190b..8768206 100644
--- a/src/private/uint_binary_ops.nim
+++ b/src/private/uint_binary_ops.nim
@@ -36,7 +36,7 @@ proc `-=`*(x: var MpUintImpl, y: MpUintImpl) {.noSideEffect, inline.}=
   # Clang on MacOS does with the -d:release switch and MpUint[uint32] (uint64)
   type SubTy = type x.lo
   x.lo -= y.lo
-  x.hi -= (x.lo < not y.lo).toSubtype(SubTy) + y.hi
+  x.hi -= (x.lo <= not y.lo).toSubtype(SubTy) + y.hi
 
 proc `-`*(x, y: MpUintImpl): MpUintImpl {.noSideEffect, noInit, inline.}=
   # Substraction for multi-precision unsigned int