// "compress/gzip" does not also have to import "compress/flate".
const (
	NoCompression      = flate.NoCompression
	BestSpeed          = flate.BestSpeed
	BestCompression    = flate.BestCompression
	DefaultCompression = flate.DefaultCompression
	HuffmanOnly        = flate.HuffmanOnly
)

// A Writer is an io.WriteCloser.
// Writes to a Writer are compressed and written to w.
type Writer struct {

// "compress/zlib" does not also have to import "compress/flate".
const (
	NoCompression      = flate.NoCompression
	BestSpeed          = flate.BestSpeed
	BestCompression    = flate.BestCompression
	DefaultCompression = flate.DefaultCompression
	HuffmanOnly        = flate.HuffmanOnly
)

// A Writer takes data written to it and writes the compressed

	for _, level := range []int{BestSpeed, BestCompression, DefaultCompression, HuffmanOnly} {
		b := bytes.NewBuffer(nil)
		w, err := NewWriterLevel(b, level)
		if err != nil {
			f.Fatalf("failed to construct writer: %s", err)
		}
		_, err = w.Write(inp)

		}
		img, typ, err := image.Decode(bytes.NewReader(b))
		if err != nil || typ != "png" {
			return
		}
		levels := []CompressionLevel{
			DefaultCompression,
			NoCompression,
			BestSpeed,
			BestCompression,
		}
		for _, l := range levels {
			var w bytes.Buffer
			e := &Encoder{CompressionLevel: l}
			err = e.Encode(&w, img)
			if err != nil {
				t.Errorf("failed to encode valid image: %s", err)
				continue

	switch l {
	case DefaultCompression:
		return zlib.DefaultCompression
	case NoCompression:
		return zlib.NoCompression
	case BestSpeed:
		return zlib.BestSpeed
	case BestCompression:
		return zlib.BestCompression
	default:
		return zlib.DefaultCompression
	}
}

func (e *encoder) writeIEND() { e.writeChunk(nil, "IEND") }

// Encode writes the Image m to w in PNG format. Any Image may be

			extra := ""
			if f.Name != "" {
				extra = " " + f.Name
			}
			log.Fatalf("writing %s%s: %v", name, extra, err)
		}
	}()

	zw := check(gzip.NewWriterLevel(out, gzip.BestCompression))
	tw := tar.NewWriter(zw)

	// Find the mode and mtime to use for directory entries,
	// based on the mode and mtime of the first file we see.
	// We know that modes and mtimes are uniform across the archive.

		}
		gzw := gzip.NewWriter(writer)
		defer gzw.Close()
		writer = gzw
	case "deflate":
		var err error
		reader = flate.NewReader(reader)
		flw, err := flate.NewWriter(writer, flate.BestCompression)
		if err != nil {
			return nil, fmt.Errorf("errorf making flate writer: %v", err)
		}
		defer func() {
			flw.Close()
			flw.Flush()
		}()
		writer = flw
	case "":
		// This is fine

// license that can be found in the LICENSE file.

package flate

import (
	"errors"
	"fmt"
	"io"
	"math"
)

const (
	NoCompression      = 0
	BestSpeed          = 1
	BestCompression    = 9
	DefaultCompression = -1

	// HuffmanOnly disables Lempel-Ziv match searching and only performs Huffman
	// entropy encoding. This mode is useful in compressing data that has

				s, _ := io.ReadAll(reader)
				return string(s)
			},
		},
		{
			encodeType: "deflate",
			writer: func(ept string) *http.Response {
				flw, _ := flate.NewWriter(flatebuf, flate.BestCompression)
				defer flw.Close()

				flw.Write([]byte(ept))
				flw.Flush()
				return &http.Response{
					Body: io.NopCloser(flatebuf),
				}
			},
			reader: func(rep *http.Response) string {

	// affects all goroutines.
	n := debug.SetMaxStack(1 << 16)
	defer debug.SetMaxStack(n)

	var wg sync.WaitGroup
	defer wg.Wait()

	b := make([]byte, 1<<20)
	for level := HuffmanOnly; level <= BestCompression; level++ {
		// Run in separate goroutine to increase probability of stack regrowth.
		wg.Add(1)
		go func(level int) {
			defer wg.Done()
			zw, err := NewWriter(io.Discard, level)
			if err != nil {