diff --git a/feature_iter_float.go b/feature_iter_float.go
index bf9c3a4..1182ff0 100644
--- a/feature_iter_float.go
+++ b/feature_iter_float.go
@@ -19,11 +19,13 @@ func init() {
 	for i := int8('0'); i <= int8('9'); i++ {
 		floatDigits[i] = i - int8('0')
 	}
-	floatDigits[','] = endOfNumber;
-	floatDigits[']'] = endOfNumber;
-	floatDigits['}'] = endOfNumber;
-	floatDigits[' '] = endOfNumber;
-	floatDigits['.'] = dotInNumber;
+	floatDigits[','] = endOfNumber
+	floatDigits[']'] = endOfNumber
+	floatDigits['}'] = endOfNumber
+	floatDigits[' '] = endOfNumber
+	floatDigits['\t'] = endOfNumber
+	floatDigits['\n'] = endOfNumber
+	floatDigits['.'] = dotInNumber
 }
 
 func (iter *Iterator) ReadFloat32() (ret float32) {
@@ -99,6 +101,7 @@ func (iter *Iterator) readFloat32SlowPath() (ret float32) {
 				str = append(str, c)
 				continue
 			default:
+				iter.head = i
 				break load_loop
 			}
 		}
@@ -190,6 +193,7 @@ func (iter *Iterator) readFloat64SlowPath() (ret float64) {
 				str = append(str, c)
 				continue
 			default:
+				iter.head = i
 				break load_loop
 			}
 		}
diff --git a/feature_iter_object.go b/feature_iter_object.go
index 46e8e46..3dd630d 100644
--- a/feature_iter_object.go
+++ b/feature_iter_object.go
@@ -1,5 +1,7 @@
 package jsoniter
 
+import "fmt"
+
 func (iter *Iterator) ReadObject() (ret string) {
 	c := iter.nextToken()
 	switch c {
@@ -22,7 +24,7 @@ func (iter *Iterator) ReadObject() (ret string) {
 	case '}':
 		return "" // end of object
 	default:
-		iter.reportError("ReadObject", `expect { or , or } or n`)
+		iter.reportError("ReadObject", fmt.Sprintf(`expect { or , or } or n, but found %s`, string([]byte{c})))
 		return
 	}
 }
diff --git a/jsoniter_demo_test.go b/jsoniter_demo_test.go
index ad152dd..ee8592f 100644
--- a/jsoniter_demo_test.go
+++ b/jsoniter_demo_test.go
@@ -21,32 +21,3 @@ func Test_iterator_api_demo(t *testing.T) {
 	fmt.Println(total)
 }
 
-type User struct {
-	userID int
-	name   string
-	tags   []string
-}
-
-func Test_iterator_and_bind_api(t *testing.T) {
-	iter := ParseString(`[123, {"name": "taowen", "tags": ["crazy", "hacker"]}]`)
-	user := User{}
-	iter.ReadArray()
-	user.userID = iter.ReadInt()
-	iter.ReadArray()
-	iter.ReadVal(&user)
-	iter.ReadArray() // array end
-	fmt.Println(user)
-}
-
-type TaskBidLog struct {
-	age int
-}
-
-func Test2(t *testing.T) {
-	rawString :=`
-	{"id":0,"bidId":"bid01492692440885","impId":"imp0","taskId":"1024","bidPrice":80,"winPrice":0,"isWon":0,"createTime":1492692440885,"updateTime":null,"device":"","age":30,"gender":"","location":"[中国, 山西, , ]","conType":"0","os":"iOS","osv":"","brand":"","geo":"","ip":"1.68.4.193","idfa":"","waxUserid":""}`
-	var log TaskBidLog
-	err := UnmarshalFromString(rawString, &log)
-	fmt.Println(err)
-	fmt.Println(log.age)
-}
diff --git a/jsoniter_float_test.go b/jsoniter_float_test.go
index c32e924..9d4f6b7 100644
--- a/jsoniter_float_test.go
+++ b/jsoniter_float_test.go
@@ -133,6 +133,15 @@ func Test_write_float64(t *testing.T) {
 	should.Equal("abcdefg1.123456", buf.String())
 }
 
+func Test_read_float64_cursor(t *testing.T) {
+	should := require.New(t)
+	iter := ParseString("[1.23456789\n,2,3]")
+	should.True(iter.ReadArray())
+	should.Equal(1.23456789, iter.Read())
+	should.True(iter.ReadArray())
+	should.Equal(float64(2), iter.Read())
+}
+
 func Benchmark_jsoniter_float(b *testing.B) {
 	b.ReportAllocs()
 	input := []byte(`1.1123,`)