C programming language

text: computer science a structured programming approach using C, third edition

ch: 1-6

A Boiler Number for an integer x is the sum of all values from 1 to x. Given a range of positive integer values starting at y and continuing to z, display the Boiler Number for each value in the range.

Example Execution #1: Enter starting value: 1

Enter ending value: 5 Boiler Numbers [1, 5]: 1 3 6 10 15 

Example Execution #2 (input validation requirement, ending value must be greater than the starting value):

Enter starting value: 37 Enter ending value: 30 

Error! Ending value must be > 37 Enter ending value: 37 Error! Ending value must be > 37 Enter ending value: 40 

Boiler Numbers [37, 40]: 703 741 780 820 

Example Execution #3 (input validation requirement, starting value must be positive):

Enter starting value: 0 

Error! Starting value must be positive! 

Enter starting value: -1 

Error! Starting value must be positive! 

Enter starting value: 15 Enter ending value: 17 

Boiler Numbers [15, 17]: 120 136 153 

The use of arrays are not permitted on this assignment

For this assignment you will be required to implement the user-defined functions (from chapter 4).

With our ability to implement user-defined functions only the following will be permitted in the main function:

Declaration of variables to be passed to functions.

Calls to user-defined functions by main.

A limited amount of control structures (see chapters 5 and 6) to retain the previous two tasks within the main

function.