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Revert "std: float64/32 clean up e-09 to e-9"

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This reverts commit 10b9ac0971.
This commit is contained in:
molon 2022-09-15 22:09:27 +08:00
parent ffc487c633
commit 9b00d50ac0
2 changed files with 4 additions and 21 deletions
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16
stream_float.go
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@ -27,14 +27,6 @@ func (stream *Stream) WriteFloat32(val float32) {
} }
} }
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 32) stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 32)
if fmt == 'e' {
// clean up e-09 to e-9
n := len(stream.buf)
if n >= 4 && stream.buf[n-4] == 'e' && stream.buf[n-3] == '-' && stream.buf[n-2] == '0' {
stream.buf[n-2] = stream.buf[n-1]
stream.buf = stream.buf[:n-1]
}
}
} }
// WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster // WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster
@ -84,14 +76,6 @@ func (stream *Stream) WriteFloat64(val float64) {
} }
} }
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 64) stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 64)
if fmt == 'e' {
// clean up e-09 to e-9
n := len(stream.buf)
if n >= 4 && stream.buf[n-4] == 'e' && stream.buf[n-3] == '-' && stream.buf[n-2] == '0' {
stream.buf[n-2] = stream.buf[n-1]
stream.buf = stream.buf[:n-1]
}
}
} }
// WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster // WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster

9
value_tests/float_test.go
View File

@ -4,11 +4,10 @@ import (
"bytes" "bytes"
"encoding/json" "encoding/json"
"fmt" "fmt"
"github.com/json-iterator/go"
"github.com/stretchr/testify/require"
"strconv" "strconv"
"testing" "testing"
jsoniter "github.com/json-iterator/go"
"github.com/stretchr/testify/require"
) )
func Test_read_float(t *testing.T) { func Test_read_float(t *testing.T) {
@ -89,7 +88,7 @@ func Test_write_float32(t *testing.T) {
stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 0) stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 0)
stream.WriteFloat32(float32(0.0000001)) stream.WriteFloat32(float32(0.0000001))
should.Equal("1e-7", string(stream.Buffer())) should.Equal("1e-07", string(stream.Buffer()))
} }
func Test_write_float64(t *testing.T) { func Test_write_float64(t *testing.T) {
@ -126,5 +125,5 @@ func Test_write_float64(t *testing.T) {
stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 0) stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 0)
stream.WriteFloat64(float64(0.0000001)) stream.WriteFloat64(float64(0.0000001))
should.Equal("1e-7", string(stream.Buffer())) should.Equal("1e-07", string(stream.Buffer()))
} }