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- // @generated Code generated by gen-atomicwrapper.
-
- // Copyright (c) 2020 Uber Technologies, Inc.
- //
- // Permission is hereby granted, free of charge, to any person obtaining a copy
- // of this software and associated documentation files (the "Software"), to deal
- // in the Software without restriction, including without limitation the rights
- // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- // copies of the Software, and to permit persons to whom the Software is
- // furnished to do so, subject to the following conditions:
- //
- // The above copyright notice and this permission notice shall be included in
- // all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- // THE SOFTWARE.
-
- package atomic
-
- import (
- "encoding/json"
- "math"
- )
-
- // Float64 is an atomic type-safe wrapper for float64 values.
- type Float64 struct {
- _ nocmp // disallow non-atomic comparison
-
- v Uint64
- }
-
- var _zeroFloat64 float64
-
- // NewFloat64 creates a new Float64.
- func NewFloat64(v float64) *Float64 {
- x := &Float64{}
- if v != _zeroFloat64 {
- x.Store(v)
- }
- return x
- }
-
- // Load atomically loads the wrapped float64.
- func (x *Float64) Load() float64 {
- return math.Float64frombits(x.v.Load())
- }
-
- // Store atomically stores the passed float64.
- func (x *Float64) Store(v float64) {
- x.v.Store(math.Float64bits(v))
- }
-
- // CAS is an atomic compare-and-swap for float64 values.
- func (x *Float64) CAS(o, n float64) bool {
- return x.v.CAS(math.Float64bits(o), math.Float64bits(n))
- }
-
- // MarshalJSON encodes the wrapped float64 into JSON.
- func (x *Float64) MarshalJSON() ([]byte, error) {
- return json.Marshal(x.Load())
- }
-
- // UnmarshalJSON decodes a float64 from JSON.
- func (x *Float64) UnmarshalJSON(b []byte) error {
- var v float64
- if err := json.Unmarshal(b, &v); err != nil {
- return err
- }
- x.Store(v)
- return nil
- }
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