mirror of https://github.com/tidwall/tile38.git
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
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/*
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go-float16 - IEEE 754 binary16 half precision format
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Written in 2013 by h2so5 <mail@h2so5.net>
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To the extent possible under law, the author(s) have dedicated all copyright and
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related and neighboring rights to this software to the public domain worldwide.
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This software is distributed without any warranty.
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You should have received a copy of the CC0 Public Domain Dedication along with this software.
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If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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package half
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import (
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"math"
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"testing"
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)
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func getFloatTable() map[Float16]float32 {
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table := map[Float16]float32{
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0x3c00: 1,
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0x4000: 2,
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0xc000: -2,
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0x7bfe: 65472,
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0x7bff: 65504,
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0xfbff: -65504,
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0x0000: 0,
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0x8000: float32(math.Copysign(0, -1)),
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0x7c00: float32(math.Inf(1)),
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0xfc00: float32(math.Inf(-1)),
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0x5b8f: 241.875,
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0x48c8: 9.5625,
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}
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return table
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}
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func TestFloat32(t *testing.T) {
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for k, v := range getFloatTable() {
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f := k.Float32()
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if f != v {
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t.Errorf("ToFloat32(%d) = %f, want %f.", k, f, v)
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}
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}
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}
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func TestNewFloat16(t *testing.T) {
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for k, v := range getFloatTable() {
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i := NewFloat16(v)
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if i != k {
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t.Errorf("FromFloat32(%f) = %d, want %d.", v, i, k)
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}
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}
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}
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