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// Copyright 2011 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.
// This file contains the code snippets included in "Defer, Panic, and Recover."
package main
import (
"fmt"
"io"
"os"
)
func a() {
i := 0
defer fmt.Println(i)
i++
return
}
// STOP OMIT
func b() {
for i := 0; i < 4; i++ {
defer fmt.Print(i)
}
}
// STOP OMIT
func c() (i int) {
defer func() { i++ }()
return 1
}
// STOP OMIT
// Initial version.
func CopyFile(dstName, srcName string) (written int64, err error) {
src, err := os.Open(srcName)
if err != nil {
return
}
dst, err := os.Create(dstName)
if err != nil {
return
}
written, err = io.Copy(dst, src)
dst.Close()
src.Close()
return
}
// STOP OMIT
func main() {
a()
b()
fmt.Println()
fmt.Println(c())
}
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