From 81e31b67f46ef3ee983d7716d2abfa626e022dbd Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 11 Jun 2019 14:04:04 -0700
Subject: [PATCH] Sync to ulfjack/ryu@00ecce8

---
 README.md  | 2 +-
 src/d2s.rs | 2 ++
 src/f2s.rs | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5b4941c..ebeb66d 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/608ce6fdfe7743a6dbaadeebd81ae1146603fc6d
+[upstream]: https://github.com/ulfjack/ryu/tree/00ecce8c59ab9bdb7b8f6c3dc54ee467cfab6b43
 
 ```toml
 [dependencies]
diff --git a/src/d2s.rs b/src/d2s.rs
index 8d5c9e3..5faf5cf 100644
--- a/src/d2s.rs
+++ b/src/d2s.rs
@@ -145,6 +145,8 @@ pub fn decimal_length17(v: u64) -> u32 {
 // A floating decimal representing m * 10^e.
 pub struct FloatingDecimal64 {
     pub mantissa: u64,
+    // Decimal exponent's range is -324 to 308
+    // inclusive, and can fit in i16 if needed.
     pub exponent: i32,
 }
 
diff --git a/src/f2s.rs b/src/f2s.rs
index d99bfa5..4ad50a1 100644
--- a/src/f2s.rs
+++ b/src/f2s.rs
@@ -176,6 +176,8 @@ fn mul_pow5_div_pow2(m: u32, i: u32, j: i32) -> u32 {
 // A floating decimal representing m * 10^e.
 pub struct FloatingDecimal32 {
     pub mantissa: u32,
+    // Decimal exponent's range is -45 to 38
+    // inclusive, and can fit in i16 if needed.
     pub exponent: i32,
 }