p.Double(p)
		}

		windowValue := byte >> 4
		table.Select(t, windowValue)
		p.Add(p, t)

		p.Double(p)
		p.Double(p)
		p.Double(p)
		p.Double(p)

		windowValue = byte & 0b1111
		table.Select(t, windowValue)
		p.Add(p, t)
	}

	return p, nil
}

var p521GeneratorTable *[p521ElementLength * 2]p521Table
var p521GeneratorTableOnce sync.Once

			p.Double(p)
		}

		windowValue := byte >> 4
		table.Select(t, windowValue)
		p.Add(p, t)

		p.Double(p)
		p.Double(p)
		p.Double(p)
		p.Double(p)

		windowValue = byte & 0b1111
		table.Select(t, windowValue)
		p.Add(p, t)
	}

	return p, nil
}

var p256GeneratorTable *[p256ElementLength * 2]p256Table
var p256GeneratorTableOnce sync.Once

			}
		}
		isExecutable = func(fi os.FileInfo) bool {
			return fi.Mode().IsRegular()
		}
	} else {
		isExecutable = func(fi os.FileInfo) bool {
			return fi.Mode().IsRegular() && fi.Mode().Perm()&0111 != 0
		}
	}

	pathEnv, _ := s.LookupEnv(pathEnvName())
	for _, dir := range strings.Split(pathEnv, string(filepath.ListSeparator)) {
		if dir == "" {
			continue
		}

			p.Double(p)
		}

		windowValue := byte >> 4
		table.Select(t, windowValue)
		p.Add(p, t)

		p.Double(p)
		p.Double(p)
		p.Double(p)
		p.Double(p)

		windowValue = byte & 0b1111
		table.Select(t, windowValue)
		p.Add(p, t)
	}

	return p, nil
}

var p384GeneratorTable *[p384ElementLength * 2]p384Table
var p384GeneratorTableOnce sync.Once

			p.Double(p)
		}

		windowValue := byte >> 4
		table.Select(t, windowValue)
		p.Add(p, t)

		p.Double(p)
		p.Double(p)
		p.Double(p)
		p.Double(p)

		windowValue = byte & 0b1111
		table.Select(t, windowValue)
		p.Add(p, t)
	}

	return p, nil
}

var {{.p}}GeneratorTable *[{{.p}}ElementLength * 2]{{.p}}Table
var {{.p}}GeneratorTableOnce sync.Once

	} else if x[0]&(1<<9) != 0 {
		return 9
	} else if x[0]&(1<<10) != 0 {
		return 10
	} else if x[0]&(1<<11) != 0 {
		return 11
	} else if x[0]&(1<<12) != 0 {
		return 12
	} else if x[0]&(1<<13) != 0 {
		return 13
	} else if x[0]&(1<<14) != 0 {
		return 14
	} else if x[0]&(1<<15) != 0 {
		return 15
	} else if x[0]&(1<<16) != 0 {
		return 16
	} else if x[0]&(1<<17) != 0 {
		return 17
	} else if x[0]&(1<<18) != 0 {

		}
	}
}

// Test to use ANDN, if available
func TestAndNot(t *testing.T) {
	for _, tt := range []struct {
		x, y, want uint64
	}{
		{0b00001111, 0b00000011, 0b1100},
		{0b00001111, 0b00001100, 0b0011},
		{0b00000000, 0b00000000, 0b0000},
	} {
		if got := tt.x &^ tt.y; got != tt.want {
			t.Errorf("%#x &^ %#x = %#x, want %#x", tt.x, tt.y, got, tt.want)
		}

	{"0XDEADBEEF", 0, false, nat{0xdeadbeef}, 16, 8, nil, 0},

	// valid, with decimal point
	{"0.", 0, false, nil, 10, 1, nil, '.'},
	{"0.", 10, true, nil, 10, 0, nil, 0},
	{"0.1.2", 10, true, nat{1}, 10, -1, nil, '.'},
	{".000", 10, true, nil, 10, -3, nil, 0},
	{"12.3", 10, true, nat{123}, 10, -1, nil, 0},
	{"012.345", 10, true, nat{12345}, 10, -3, nil, 0},
	{"0.1", 0, true, nat{1}, 10, -1, nil, 0},

	testNumbers(t, token.INT, intTests)
	testNumbers(t, token.FLOAT, floatTests)
	testNumbers(t, token.IMAG, imagTests)
}

var opTests = []string{
	// unary operations
	`+ 0 = 0`,
	`+ ? = ?`,
	`- 1 = -1`,
	`- ? = ?`,
	`^ 0 = -1`,
	`^ ? = ?`,

	`! true = false`,
	`! false = true`,
	`! ? = ?`,

	// etc.

	// binary operations
	`"" + "" = ""`,
	`"foo" + "" = "foo"`,

	{"-1e19", false, false, true, false, 0, 0, -1e19, 0},
	{"0x_1p4", true, true, true, false, 16, 16, 16, 0},
	{"0X_1P4", true, true, true, false, 16, 16, 16, 0},
	{"0x_1p-4", false, false, true, false, 0, 0, 1 / 16., 0},
	{"4i", false, false, false, true, 0, 0, 0, 4i},
	{"-1.2+4.2i", false, false, false, true, 0, 0, 0, -1.2 + 4.2i},
	{"073i", false, false, false, true, 0, 0, 0, 73i}, // not octal!