You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: issue13162.go
    path of file: ./repos/gccrs/gcc/testsuite/go.test/test/fixedbugs
    
    the code of the file until where you have to start completion: // run

// Copyright 2016 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.

// Ensure that range loops over a string have the requisite side-effects.

package main

import (
	"fmt"
	"os"
)

func check(n int) {
	var i int
	var r rune

	b := make([]byte, n)
	for i = range b {
		b[i] = byte(i + 1)
	}
	s := string(b)

	// When n == 0, i is untouched by the range loop.
	// Picking an initial value of -1 for i makes the
	// "want" calculation below correct in all cases.
	i = -1
	for i = range s {
		b[i] = s[i]
	}
	if want := n - 1; i != want {
		fmt.Printf("index after range with side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}

	i = -1
	r = '\x00'
	for i, r = range s {
		b[i] = byte(r)
	}
	if want := n - 1; i != want {
		fmt.Printf("index after range with side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}
	if want := rune(n); r != want {
		fmt.Printf("rune after range with side-effect = %q want %q\n", r, want)
		os.Exit(1)
	}

	i = -1
	// i is shadowed here, so its value should be unchanged.
	for i := range s {
		b[i] = s[i]
	}
	if want := -1; i != want {
		fmt.Printf("index after range without side-effect = %d wa
    
func check(n int) {
	var i int
	var r rune

	b := make([]byte, n)
	for i = range b {
		b[i] = byte(i + 1)
	}
	s := string(b)

	// When n == 0, i is untouched by the range loop.
	// Picking an initial value of -1 for i makes the
	// "want" calculation below correct in all cases.
	i = -1
	for i = range s {
		b[i] = s[i]
	}
	if want := n - 1; i != want {
		fmt.Printf("index after range with side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}

	i = -1
	r = '\x00'
	for i, r = range s {
		b[i] = byte(r)
	}
	if want := n - 1; i != want {
		fmt.Printf("index after range with side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}
	if want := rune(n); r != want {
		fmt.Printf("rune after range with side-effect = %q want %q\n", r, want)
		os.Exit(1)
	}

	i = -1
	// i is shadowed here, so its value should be unchanged.
	for i := range s {
		b[i] = s[i]
	}
	if want := -1; i != want {
		fmt.Printf("index after range without side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}

	i = -1
	r = -1
	// i and r are shadowed here, so their values should be unchanged.
	for i, r := range s {
		b[i] = byte(r)
	}
	if want := -1; i != want {
		fmt.Printf("index after range without side-effect = %d want %d\n", i, want)
		os.Exit(1)
	}
	if want := rune(-1); r != want {
		fmt.Printf("rune after range without side-effect = %q want %q\n", r, want)
		os.Exit(1)
	}
}