From 588cc644ad6d6d6419dcd48651ae451557cdc100 Mon Sep 17 00:00:00 2001
From: Jubilee Young <workingjubilee@gmail.com>
Date: Sat, 31 Oct 2020 12:30:22 -0700
Subject: [PATCH] Add ability to read NaN/Infinity

---
 library/core/src/num/dec2flt/mod.rs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/library/core/src/num/dec2flt/mod.rs b/library/core/src/num/dec2flt/mod.rs
index 20ac165c6c79..f008a64ffe65 100644
--- a/library/core/src/num/dec2flt/mod.rs
+++ b/library/core/src/num/dec2flt/mod.rs
@@ -239,13 +239,15 @@ fn dec2flt<T: RawFloat>(s: &str) -> Result<T, ParseFloatError> {
         ParseResult::Valid(decimal) => convert(decimal)?,
         ParseResult::ShortcutToInf => T::INFINITY,
         ParseResult::ShortcutToZero => T::ZERO,
-        ParseResult::Invalid => match s {
-            "inf" => T::INFINITY,
-            "NaN" => T::NAN,
-            _ => {
+        ParseResult::Invalid => {
+            if s.eq_ignore_ascii_case("nan") {
+                T::NAN
+            } else if s.eq_ignore_ascii_case("inf") || s.eq_ignore_ascii_case("infinity") {
+                T::INFINITY
+            } else {
                 return Err(pfe_invalid());
             }
-        },
+        }
     };
 
     match sign {