From ac5ad5974596cffecc7211bc02600cdcbb6ec303 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 11 Jun 2019 14:06:54 -0700
Subject: [PATCH] Sync to ulfjack/ryu@159ce15

---
 README.md  | 2 +-
 src/d2s.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index ebeb66d..c3596f3 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ C, [https://github.com/ulfjack/ryu][upstream].
 uses nothing from the Rust standard library so is usable from no_std crates.*
 
 [paper]: https://dl.acm.org/citation.cfm?id=3192369
-[upstream]: https://github.com/ulfjack/ryu/tree/00ecce8c59ab9bdb7b8f6c3dc54ee467cfab6b43
+[upstream]: https://github.com/ulfjack/ryu/tree/159ce150fa94e0229f3e02ecc6f4243f21388c0b
 
 ```toml
 [dependencies]
diff --git a/src/d2s.rs b/src/d2s.rs
index 5faf5cf..97d4830 100644
--- a/src/d2s.rs
+++ b/src/d2s.rs
@@ -263,7 +263,7 @@ pub fn d2d(ieee_mantissa: u64, ieee_exponent: u32) -> FloatingDecimal64 {
             // <=> ntz(mv) >= q - 1    (e2 is negative and -e2 >= q)
             // <=> (mv & ((1 << (q - 1)) - 1)) == 0
             // We also need to make sure that the left shift does not overflow.
-            vr_is_trailing_zeros = multiple_of_power_of_2(mv, q - 1);
+            vr_is_trailing_zeros = multiple_of_power_of_2(mv, q);
         }
     }