// standard 64-bit division.
			ret64 := tc.num / int64(tc.div)
			rem64 := tc.num % int64(tc.div)
			if ret64 != int64(int32(ret64)) {
				// Simulate timediv overflow value.
				ret64 = 1<<31 - 1
				rem64 = 0
			}
			if ret64 != int64(tc.ret) {
				t.Errorf("%d / %d got ret %d rem %d want ret %d rem %d", tc.num, tc.div, ret64, rem64, tc.ret, tc.rem)
			}

			var rem int32

func parseInt32(bytes []byte) (int32, error) {
	if err := checkInteger(bytes); err != nil {
		return 0, err
	}
	ret64, err := parseInt64(bytes)
	if err != nil {
		return 0, err
	}
	if ret64 != int64(int32(ret64)) {
		return 0, StructuralError{"integer too large"}
	}
	return int32(ret64), nil
}

var bigOne = big.NewInt(1)

// parseBigInt treats the given bytes as a big-endian, signed integer and returns

			}
		}

		x64 := uint64(m)
		got64 := RotateLeft64(x64, int(k))
		want64 := x64<<(k&0x3f) | x64>>(64-k&0x3f)
		if got64 != want64 {
			t.Fatalf("RotateLeft64(%#016x, %d) == %#016x; want %#016x", x64, k, got64, want64)
		}
		got64 = RotateLeft64(want64, -int(k))
		if got64 != x64 {
			t.Fatalf("RotateLeft64(%#016x, -%d) == %#016x; want %#016x", want64, k, got64, x64)
		}
		if UintSize == 64 {
			x := uint(m)