文件操作 - issue40917.go
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文件: /usr/share/go-1.23/test/fixedbugs/issue40917.go
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// run -gcflags=-d=checkptr // Copyright 2020 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import "unsafe" func main() { var x [2]uint64 a := unsafe.Pointer(&x[1]) b := a b = unsafe.Pointer(uintptr(b) + 2) b = unsafe.Pointer(uintptr(b) - 1) b = unsafe.Pointer(uintptr(b) &^ 1) if a != b { panic("pointer arithmetic failed") } }
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