Merge pull request #513 from AllenX2018/fix-issue-510

fix issue 510
json-iterator · Nov 18, 2020 · e6b9536 · e6b9536
2 parents 9b79a3e + a3465d7
commit e6b9536
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diff --git 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
@@ -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)