mirror of
https://github.com/golang/go
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e24977d231
The next CL will remove the -G flag, effectively hard-coding it to its current default (-G=3). Change-Id: Ib4743b529206928f9f1cca9fdb19989728327831 Reviewed-on: https://go-review.googlesource.com/c/go/+/388534 Reviewed-by: Keith Randall <khr@golang.org> Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
36 lines
569 B
Go
36 lines
569 B
Go
// compile -d=checkptr
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// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"sync/atomic"
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"unsafe"
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)
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type Node[T any] struct {
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Next *Node[T]
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// Prev *Node[T]
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}
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func LoadPointer[T any](addr **T) (val *T) {
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return (*T)(
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atomic.LoadPointer(
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(*unsafe.Pointer)(unsafe.Pointer(addr)),
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))
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}
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func (q *Node[T]) Pop() {
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var tail, head *Node[T]
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if head == LoadPointer(&tail) {
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}
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}
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func main() {
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ch := Node[uint64]{}
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ch.Pop()
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}
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