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fix #365, return error for +inf -inf and NaN

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This commit is contained in:
Tao Wen
2019-05-23 13:57:43 +08:00
parent 68347ec4d6
commit 08047c174c
2 changed files with 38 additions and 0 deletions
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17
stream_float.go
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@ -1,6 +1,7 @@
package jsoniter
import (
"fmt"
"math"
"strconv"
)
@ -13,6 +14,10 @@ func init() {
// WriteFloat32 write float32 to stream
func (stream *Stream) WriteFloat32(val float32) {
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
stream.Error = fmt.Errorf("unsupported value: %f", val)
return
}
abs := math.Abs(float64(val))
fmt := byte('f')
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
@ -26,6 +31,10 @@ func (stream *Stream) WriteFloat32(val float32) {
// WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster
func (stream *Stream) WriteFloat32Lossy(val float32) {
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
stream.Error = fmt.Errorf("unsupported value: %f", val)
return
}
if val < 0 {
stream.writeByte('-')
val = -val
@ -54,6 +63,10 @@ func (stream *Stream) WriteFloat32Lossy(val float32) {
// WriteFloat64 write float64 to stream
func (stream *Stream) WriteFloat64(val float64) {
if math.IsInf(val, 0) || math.IsNaN(val) {
stream.Error = fmt.Errorf("unsupported value: %f", val)
return
}
abs := math.Abs(val)
fmt := byte('f')
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
@ -67,6 +80,10 @@ func (stream *Stream) WriteFloat64(val float64) {
// WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster
func (stream *Stream) WriteFloat64Lossy(val float64) {
if math.IsInf(val, 0) || math.IsNaN(val) {
stream.Error = fmt.Errorf("unsupported value: %f", val)
return
}
if val < 0 {
stream.writeByte('-')
val = -val