Write the size calculation program described in Chapter 3, Programming Project 8, with the following additional requirements/specifications.

• The input values are all integers
• The calculated values should all be rounded to the nearest tenth. To do this, write the function described below. Hint: you'll want to use some of the functions from the math library to help out. This function would be a nice one to have in a library - it's designed for reuse. You will want to do module testing on it, since not all the functionality described will be exercised by the size calculation program. Use a loop-with-sentinel in your test program to avoid having to run it several times.

  double round(double x, int precision);
  // Precondition:
  //   x may be positive or negative
  //   precision should be non-negative (check whether it is!)
  // Postcondition:
  //   Returns the value of x rounded to the specified precision
  //     (number of digits after the decimal point)
  

  Examples:

      round(1.23456, 0) = 1
      round(1.23456, 1) = 1.2
      round(1.23456, 4) = 1.2346
      round(-5.62, 0) = -6
      round(-5.62, 1) = -5.6
      round(-5.26, 1) = -5.3
  

Sample runs:

Create and print one sample run that shows module testing of the round function, and one which shows operation of the size calculation program.