From 56fb154c904a0c33efcb4668a321d3df62501166 Mon Sep 17 00:00:00 2001
From: Adam Wick <awick@uhsure.com>
Date: Tue, 8 Jan 2019 09:48:28 -0800
Subject: [PATCH] Fix the QuickCheck logic for back conversion.

---
 src/signed/conversion.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/signed/conversion.rs b/src/signed/conversion.rs
index 1fcd0eb..6994609 100644
--- a/src/signed/conversion.rs
+++ b/src/signed/conversion.rs
@@ -69,7 +69,7 @@ macro_rules! generate_sigconversion_tests
                 {
                     let mut base = $sname::zero();
                     let xprime = x & 0x7FFFFFFFFFFFFFFF;
-                    base.negative = b;
+                    base.negative = b && (x != 0);
                     base.value.value[0] = xprime;
                     base == $sname::from(i64::from(&base))
                 }