// 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.

// Package fmtcmd implements the “go fmt” command.
package fmtcmd

import (
	"context"
	"errors"
	"fmt"
	"os"
	"path/filepath"

	"cmd/go/internal/base"
	"cmd/go/internal/cfg"
	"cmd/go/internal/load"
	"cmd/go/internal/modload"
	"cmd/internal/sys"
)

func init() {

	fmt.Printf("%08b\n", bits.RotateLeft8(15, -2))
	// Output:
	// 00001111
	// 00111100
	// 11000011
}

func ExampleRotateLeft16() {
	fmt.Printf("%016b\n", 15)
	fmt.Printf("%016b\n", bits.RotateLeft16(15, 2))
	fmt.Printf("%016b\n", bits.RotateLeft16(15, -2))
	// Output:
	// 0000000000001111
	// 0000000000111100
	// 1100000000000011
}

func ExampleRotateLeft32() {
	fmt.Printf("%032b\n", 15)

		fmt.Fprintf(w, "    t.Errorf(\"t%dcopy got=%%v, want %%v\\n\", a, want)\n", s)
		fmt.Fprintf(w, "  }\n")
		fmt.Fprintf(w, "}\n")
	}

	for _, s := range usizes {
		// function being tested
		fmt.Fprintf(w, "//go:noinline\n")
		fmt.Fprintf(w, "func tu%dcopy_ssa(docopy bool, data [%d]byte, x *[%d]byte) {\n", s, s, s)
		fmt.Fprintf(w, "  if docopy {\n")
		fmt.Fprintf(w, "    *x = data\n")
		fmt.Fprintf(w, "  }\n")

	ipv4Public := net.ParseIP("8.8.8.8")
	ipv4Broadcast := net.ParseIP("255.255.255.255")

	fmt.Println(ipv6Global.IsGlobalUnicast())
	fmt.Println(ipv6UniqLocal.IsGlobalUnicast())
	fmt.Println(ipv6Multi.IsGlobalUnicast())

	fmt.Println(ipv4Private.IsGlobalUnicast())
	fmt.Println(ipv4Public.IsGlobalUnicast())
	fmt.Println(ipv4Broadcast.IsGlobalUnicast())

	// Output:
	// true
	// true
	// false
	// true

	b16 = strconv.AppendUint(b16, 42, 16)
	fmt.Println(string(b16))

	// Output:
	// uint (base 10):42
	// uint (base 16):2a
}

func ExampleAtoi() {
	v := "10"
	if s, err := strconv.Atoi(v); err == nil {
		fmt.Printf("%T, %v", s, s)
	}

	// Output:
	// int, 10
}

func ExampleCanBackquote() {
	fmt.Println(strconv.CanBackquote("Fran & Freddie's Diner ☺"))

					fmt.Fprintf(w, "\ty = %d\n", d)
					fmt.Fprintf(w, "\tr = x %s y\n", o.symbol)
					want := ansS(c, d, s.name, o.symbol)
					fmt.Fprintf(w, "\tif r != %s {\n", want)
					fmt.Fprintf(w, "\t\tt.Errorf(\"%d %%s %d = %%d, want %s\", %q, r)\n", c, d, want, o.symbol)
					fmt.Fprintf(w, "\t}\n")
				}
			}
			fmt.Fprintf(w, "}\n")
		}
	}

	// Special signed/unsigned cases for shifts
	for _, ls := range szs {

	grow := slices.Grow(numbers, 2)
	fmt.Println(cap(numbers))
	fmt.Println(grow)
	fmt.Println(len(grow))
	fmt.Println(cap(grow))
	// Output:
	// 4
	// [0 42 -10 8]
	// 4
	// 8
}

func ExampleClip() {
	a := [...]int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
	s := a[:4:10]
	clip := slices.Clip(s)
	fmt.Println(cap(s))
	fmt.Println(clip)
	fmt.Println(len(clip))
	fmt.Println(cap(clip))
	// Output:

	fmt.Printf("%.2f\n", math.Dim(4, -2))
	fmt.Printf("%.2f\n", math.Dim(-4, 2))
	// Output:
	// 6.00
	// 0.00
}

func ExampleExp() {
	fmt.Printf("%.2f\n", math.Exp(1))
	fmt.Printf("%.2f\n", math.Exp(2))
	fmt.Printf("%.2f\n", math.Exp(-1))
	// Output:
	// 2.72
	// 7.39
	// 0.37
}

func ExampleExp2() {
	fmt.Printf("%.2f\n", math.Exp2(1))
	fmt.Printf("%.2f\n", math.Exp2(-3))
	// Output:

	fmt.Println("runes =", utf8.RuneCountInString(str))
	// Output:
	// bytes = 13
	// runes = 9
}

func ExampleRuneLen() {
	fmt.Println(utf8.RuneLen('a'))
	fmt.Println(utf8.RuneLen('界'))
	// Output:
	// 1
	// 3
}

func ExampleRuneStart() {
	buf := []byte("a界")
	fmt.Println(utf8.RuneStart(buf[0]))
	fmt.Println(utf8.RuneStart(buf[1]))
	fmt.Println(utf8.RuneStart(buf[2]))
	// Output:
	// true

	genSize2 := (1 << 21) + 16

	fmt.Fprintln(buf, "TEXT f(SB),0,$0-0")
	fmt.Fprintln(buf, "BEQ R5, R6, label18")
	fmt.Fprintln(buf, "BNE R5, R6, label18")
	fmt.Fprintln(buf, "BGE R5, R6, label18")

	fmt.Fprintln(buf, "BGEU R5, R6, label18")
	fmt.Fprintln(buf, "BLTU R5, R6, label18")

	fmt.Fprintln(buf, "BLEZ R5, label18")
	fmt.Fprintln(buf, "BGEZ R5, label18")
	fmt.Fprintln(buf, "BLTZ R5, label18")