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implement readFloat32 fast path

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This commit is contained in:
Tao Wen
2017-01-15 17:30:02 +08:00
parent a57c8c6202
commit 5b2a731963
4 changed files with 181 additions and 79 deletions
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31
jsoniter_float_test.go
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@ -25,12 +25,25 @@ func Test_float64_1_dot_1(t *testing.T) {
}
}
func Test_float32_1_dot_1_comma(t *testing.T) {
iter := ParseString(`1.1,`)
val := iter.ReadFloat32()
if val != 1.1 {
fmt.Println(iter.Error)
t.Fatal(val)
func Test_read_float32(t *testing.T) {
inputs := []string{`1.1`, `1000`, `9223372036854775807`, `12.3`, `-12.3`, `720368.54775807`, `720368.547758075`}
for _, input := range inputs {
// non-streaming
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := ParseString(input + ",")
expected, err := strconv.ParseFloat(input, 32)
should.Nil(err)
should.Equal(float32(expected), iter.ReadFloat32())
})
// streaming
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := Parse(bytes.NewBufferString(input + ","), 2)
expected, err := strconv.ParseFloat(input, 32)
should.Nil(err)
should.Equal(float32(expected), iter.ReadFloat32())
})
}
}
@ -102,9 +115,11 @@ func Test_write_float64(t *testing.T) {
func Benchmark_jsoniter_float(b *testing.B) {
b.ReportAllocs()
input := []byte(`1.1123,`)
iter := NewIterator()
for n := 0; n < b.N; n++ {
iter := ParseString(`1.1111111111`)
iter.ReadFloat64()
iter.ResetBytes(input)
iter.ReadFloat32()
}
}