From 9d1a8f84f2b14221c52115d43a057c6927a343db Mon Sep 17 00:00:00 2001
From: AllenX2018 <leloucharcher@163.com>
Date: Tue, 17 Nov 2020 17:37:55 +0800
Subject: [PATCH] fix issue 510

---
 iter_float.go | 3 +++
 iter_int.go   | 1 +
 2 files changed, 4 insertions(+)

diff --git a/iter_float.go b/iter_float.go
index b9754638..8a3d8b6f 100644
--- a/iter_float.go
+++ b/iter_float.go
@@ -288,6 +288,9 @@ non_decimal_loop:
 				return iter.readFloat64SlowPath()
 			}
 			value = (value << 3) + (value << 1) + uint64(ind)
+			if value > maxFloat64 {
+				return iter.readFloat64SlowPath()
+			}
 		}
 	}
 	return iter.readFloat64SlowPath()
diff --git a/iter_int.go b/iter_int.go
index cb8d1e54..d786a89f 100644
--- a/iter_int.go
+++ b/iter_int.go
@@ -9,6 +9,7 @@ var intDigits []int8
 
 const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1
 const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 1
+const maxFloat64 = 1<<53 - 1
 
 func init() {
 	intDigits = make([]int8, 256)