文件操作 - issue34123.go
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文件: /usr/share/go-1.23/test/fixedbugs/issue34123.go
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// run // Copyright 2019 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. // Make sure that the line number is reported correctly // for faulting instructions. package main import ( "fmt" "runtime" ) var x byte var p *byte //go:noinline func f() { q := p x = 11 // line 23 *q = 12 // line 24 } func main() { defer func() { recover() var pcs [10]uintptr n := runtime.Callers(1, pcs[:]) frames := runtime.CallersFrames(pcs[:n]) for { f, more := frames.Next() if f.Function == "main.f" && f.Line != 24 { panic(fmt.Errorf("expected line 24, got line %d", f.Line)) } if !more { break } } }() f() }
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