b.StopTimer()
	pattern := []byte("Hello Gophers!")
	b1 := make([]byte, 0, 1<<20+len(pattern))
	for len(b1) < 1<<20 {
		b1 = append(b1, pattern...)
	}
	b2 := make([]byte, len(b1))
	copy(b2, b1)
	b.StartTimer()
	for j := 0; j < b.N; j++ {
		if Compare(b1[offset:], b2[offset:]) != 0 {
			b.Fatal("b1 != b2")
		}
	}
	b.SetBytes(int64(len(b1[offset:])))
}

	}

	var w1 writeCountingDiscard
	b1 := NewWriterSize(&w1, 1234)
	b1.WriteString(strings.Repeat("x", 1200))
	b1.Flush()
	if w1 != 1 {
		t.Fatalf("flush 1200 'x's: got %d writes, want 1", w1)
	}
	b1.WriteString(strings.Repeat("x", 89))
	if w1 != 1 {
		t.Fatalf("write 1200 + 89 'x's: got %d writes, want 1", w1)
	}
	io.Copy(b1, onlyReader{strings.NewReader(strings.Repeat("x", 700))})

0000460 18 a6 83 1b e3 9f ad 79 fe fd 1b 8b f1 fc 41 6f
0000470 d4 13 1f e3 b8 83 ba 64 92 e7 eb e4 77 05 8f ba
0000480 fa 3b 00 00 ff ff 50 4b 07 08 a6 18 b1 91 5e 04
0000490 00 00 e4 47 00 00 50 4b 01 02 14 00 14 00 08 00
00004a0 08 00 00 00 00 00 a6 18 b1 91 5e 04 00 00 e4 47
00004b0 00 00 0a 00 00 00 00 00 00 00 00 00 00 00 00 00
00004c0 00 00 00 00 62 69 67 67 65 72 2e 7a 69 70 50 4b

		// different start alignments
		b1 := b[i:]
		for j := 0; j < len(b1); j++ {
			b1[j] = 'x'
			pos := IndexByte(b1, 'x')
			if pos != j {
				t.Errorf("IndexByte(%q, 'x') = %v", b1, pos)
			}
			b1[j] = 0
			pos = IndexByte(b1, 'x')
			if pos != -1 {
				t.Errorf("IndexByte(%q, 'x') = %v", b1, pos)
			}
		}
		// different end alignments
		b1 = b[:i]
		for j := 0; j < len(b1); j++ {

<pre>
type (
	A1 = string
	A2 = A1
)

type (
	B1 string
	B2 B1
	B3 []B1
	B4 B3
)
</pre>

<p>
The underlying type of <code>string</code>, <code>A1</code>, <code>A2</code>, <code>B1</code>,
and <code>B2</code> is <code>string</code>.
The underlying type of <code>[]B1</code>, <code>B3</code>, and <code>B4</code> is <code>[]B1</code>.
</p>

<h3 id="Method_sets">Method sets</h3>
<p>

	A2 = A1
)

type (
	B1 string
	B2 B1
	B3 []B1
	B4 B3
)

func f[P any](x P) { … }
</pre>

<p>
The underlying type of <code>string</code>, <code>A1</code>, <code>A2</code>, <code>B1</code>,
and <code>B2</code> is <code>string</code>.
The underlying type of <code>[]B1</code>, <code>B3</code>, and <code>B4</code> is <code>[]B1</code>.