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Marshal Json support #125

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Marshal Json support #125

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dd61d7e
json support
Joey574 Apr 10, 2026
d91e350
s
Joey574 Apr 10, 2026
8687f89
complete
Joey574 Apr 10, 2026
cb549aa
fixed the marshal json test
Joey574 Apr 11, 2026
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5 changes: 5 additions & 0 deletions float16.go
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Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,11 @@ func (f Float16) String() string {
return strconv.FormatFloat(float64(f.Float32()), 'f', -1, 32)
}

// MarshalJSON satisfies json marshaller
func (f Float16) MarshalJSON() ([]byte, error) {
return []byte(f.String()), nil
}

// f16bitsToF32bits returns uint32 (float32 bits) converted from specified uint16.
func f16bitsToF32bits(in uint16) uint32 {
// All 65536 conversions with this were confirmed to be correct
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12 changes: 12 additions & 0 deletions float16_bench_test.go
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Expand Up @@ -86,3 +86,15 @@ func BenchmarkString(b *testing.B) {
}
resultStr = result
}

func BenchmarkMarshalJson(b *testing.B) {
var result []byte

pi32 := float32(math.Pi)
pi16 := float16.Fromfloat32(pi32)

for i := 0; i < b.N; i++ {
result, _ = pi16.MarshalJSON()
}
resultStr = string(result)
}
14 changes: 14 additions & 0 deletions float16_test.go
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Expand Up @@ -616,6 +616,20 @@ func TestString(t *testing.T) {

}

func TestMarshalJson(t *testing.T) {
f16 := float16.Fromfloat32(1.5)
s, _ := f16.MarshalJSON()
if string(s) != "1.5" {
t.Errorf("Float16(1.5).MarshalJson() returned %s, wanted 1.5", s)
}

f16 = float16.Fromfloat32(3.14159)
s, _ = f16.MarshalJSON()
if string(s) != "3.140625" {
t.Errorf("Float16(3.141593).MarshalJson() returned %s, wanted 3.140625", s)
}
}

func TestIsInf(t *testing.T) {

f16 := float16.Float16(0)
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