* b}.
   *
   * @throws ArithmeticException if {@code a * b} overflows in signed {@code long} arithmetic
   */
  @InlineMe(replacement = "Math.multiplyExact(a, b)")
  public static long checkedMultiply(long a, long b) {
    return Math.multiplyExact(a, b);
  }

  /**
   * Returns the {@code b} to the {@code k}th power, provided it does not overflow.
   *

        boolean expectedSuccess = fitsInLong(expectedResult);
        try {
          assertEquals(a * b, LongMath.checkedMultiply(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          if (expectedSuccess) {
            failFormat(
                "expected checkedMultiply(%s, %s) = %s; got ArithmeticException",
                a, b, expectedResult);
          }
        }
      }

   *
   * @throws ArithmeticException if {@code a * b} overflows in signed {@code int} arithmetic
   */
  @InlineMe(replacement = "Math.multiplyExact(a, b)")
  public static int checkedMultiply(int a, int b) {
    return Math.multiplyExact(a, b);
  }

  /**
   * Returns the {@code b} to the {@code k}th power, provided it does not overflow.
   *

        try {
          int unused = IntMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {
          return false;
        }
      }

      @Override
      public boolean noMulOverflow(long a, long b) {
        try {
          long unused = LongMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {

        try {
          int unused = IntMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {
          return false;
        }
      }

      @Override
      public boolean noMulOverflow(long a, long b) {
        try {
          long unused = LongMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {

        BigInteger expectedResult = valueOf(a).multiply(valueOf(b));
        boolean expectedSuccess = fitsInInt(expectedResult);
        try {
          assertEquals(a * b, IntMath.checkedMultiply(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          assertFalse(expectedSuccess);
        }
      }
    }
  }

  public void testCheckedPow() {

        BigInteger expectedResult = valueOf(a).multiply(valueOf(b));
        boolean expectedSuccess = fitsInInt(expectedResult);
        try {
          assertEquals(a * b, IntMath.checkedMultiply(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          assertFalse(expectedSuccess);
        }
      }
    }
  }

  public void testCheckedPow() {