setNproc = false
	case "aix":
		nproc = 9
	case "linux":
		nproc = 6
	case "darwin", "dragonfly", "freebsd", "netbsd", "openbsd":
		nproc = 7
	}
	if setNproc {
		var rlim syscall.Rlimit
		if syscall.Getrlimit(nproc, &rlim) == nil {
			max := int(rlim.Cur) / (threads + 5)
			if attempts > max {
				t.Logf("lowering attempts from %d to %d for RLIMIT_NPROC", attempts, max)
				attempts = max
			}
		}
	}

					if v != byte(l+i) {
						t.Fatalf("in %d,%d: Next(%d)[%d] = %d, want %d", i, j, k, l, v, l+i)
					}
				}
			}
		}
	}
}

var readBytesTests = []struct {
	buffer   string
	delim    byte
	expected []string
	err      error
}{
	{"", 0, []string{""}, io.EOF},
	{"a\x00", 0, []string{"a\x00"}, nil},
	{"abbbaaaba", 'b', []string{"ab", "b", "b", "aaab"}, nil},

		for i := 0; i < n; i++ {
			buf.WriteString("abcdefg")
		}

		r := NewReaderSize(&buf, minReadBufferSize)
		readTo := func(delim byte, want string) {
			data, err := read(r, delim)
			if err != nil {
				t.Fatalf("#%d: unexpected error reading to %c: %v", rno, delim, err)
			}
			if got := string(data); got != want {
				t.Fatalf("#%d: got %q, want %q", rno, got, want)
			}
		}

// ReadBytes reads until the first occurrence of delim in the input,
// returning a slice containing the data up to and including the delimiter.
// If ReadBytes encounters an error before finding a delimiter,
// it returns the data read before the error and the error itself (often io.EOF).
// ReadBytes returns err != nil if and only if the returned data does not end in
// delim.
func (b *Buffer) ReadBytes(delim byte) (line []byte, err error) {

pkg syscall (darwin-arm64), const RLIMIT_STACK = 3
pkg syscall (darwin-arm64), const RLIMIT_STACK ideal-int
pkg syscall (darwin-arm64), const RLIM_INFINITY = 9223372036854775807
pkg syscall (darwin-arm64), const RLIM_INFINITY ideal-int
pkg syscall (darwin-arm64), const RTAX_AUTHOR = 6
pkg syscall (darwin-arm64), const RTAX_AUTHOR ideal-int
pkg syscall (darwin-arm64), const RTAX_BRD = 7

pkg syscall (freebsd-arm64), const PTRACE_TRACEME = 0
pkg syscall (freebsd-arm64), const PTRACE_TRACEME ideal-int
pkg syscall (freebsd-arm64), const RLIM_INFINITY = 9223372036854775807
pkg syscall (freebsd-arm64), const RLIM_INFINITY ideal-int
pkg syscall (freebsd-arm64), const RLIMIT_AS = 10
pkg syscall (freebsd-arm64), const RLIMIT_AS ideal-int
pkg syscall (freebsd-arm64), const RLIMIT_CORE = 4

pkg syscall (freebsd-riscv64), const RLIMIT_STACK = 3 #53466
pkg syscall (freebsd-riscv64), const RLIMIT_STACK ideal-int #53466
pkg syscall (freebsd-riscv64), const RLIM_INFINITY = 9223372036854775807 #53466
pkg syscall (freebsd-riscv64), const RLIM_INFINITY ideal-int #53466
pkg syscall (freebsd-riscv64), const RTAX_AUTHOR = 6 #53466
pkg syscall (freebsd-riscv64), const RTAX_AUTHOR ideal-int #53466

// [Reader.ReadBytes] or ReadString instead.
// ReadSlice returns err != nil if and only if line does not end in delim.
func (b *Reader) ReadSlice(delim byte) (line []byte, err error) {
	s := 0 // search start index
	for {
		// Search buffer.
		if i := bytes.IndexByte(b.buf[b.r+s:b.w], delim); i >= 0 {
			i += s
			line = b.buf[b.r : b.r+i+1]
			b.r += i + 1
			break
		}

		// Pending error?