mirror of
https://github.com/tursom/GoCollections.git
synced 2025-03-19 05:11:22 +08:00
90 lines
1.7 KiB
Go
90 lines
1.7 KiB
Go
/*
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* Copyright (c) 2022 tursom. All rights reserved.
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* Use of this source code is governed by a GPL-3
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* license that can be found in the LICENSE file.
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*/
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package atomic
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import (
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"strconv"
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"sync/atomic"
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"unsafe"
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"github.com/tursom/GoCollections/lang"
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)
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type Float32 float32
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func (v *Float32) P() *float32 {
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return (*float32)(v)
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}
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func (v *Float32) pint32() *int32 {
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return (*int32)(unsafe.Pointer(v))
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}
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func (v *Float32) Load() (val float32) {
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return intToFloat32(atomic.LoadInt32(v.pint32()))
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}
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func (v *Float32) Store(val float32) {
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atomic.StoreInt32(v.pint32(), floatToInt32(val))
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}
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func (v *Float32) Swap(new float32) (old float32) {
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i := atomic.SwapInt32(v.pint32(), floatToInt32(new))
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return intToFloat32(i)
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}
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func (v *Float32) CompareAndSwap(old, new float32) (swapped bool) {
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return atomic.CompareAndSwapInt32(v.pint32(), floatToInt32(old), floatToInt32(new))
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}
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func (v *Float32) Add(f float32) (new float32) {
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old := v.Load()
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new = old + f
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for !v.CompareAndSwap(old, new) {
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old = v.Load()
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new = old + f
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}
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return new
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}
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func (v *Float32) String() string {
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return strconv.FormatFloat(float64(*v), 'e', -1, 32)
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}
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func (v *Float32) AsObject() lang.Object {
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return v
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}
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func (v *Float32) Equals(o lang.Object) bool {
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return lang.EqualsFloat32(v, o)
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}
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func (v *Float32) HashCode() int32 {
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return lang.Hash32(v)
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}
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func (v *Float32) ToInt64() lang.Int64 {
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return lang.Int64(*v)
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}
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func (v *Float32) ToUInt64() lang.UInt64 {
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return lang.UInt64(*v)
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}
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func (v *Float32) ToFloat64() lang.Float64 {
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return lang.Float64(*v)
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}
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func floatToInt32(f float32) int32 {
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return *(*int32)(unsafe.Pointer(&f))
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}
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func intToFloat32(f int32) float32 {
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return *(*float32)(unsafe.Pointer(&f))
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}
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