/*********************************
* 
* Programmer:Chris Cadwallader
*
* Assignment:HW 1 Q: 2
*
* Date Completed:8/31/2006
*
* Program's funcion:
* To take user input of floats until it 
* reads -999. Then it takes those floats
* and calculates and displays the average
* and maximum value.
**********************************/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define TERMINATE -999

void getFloats(float*, float*);
void printResults(float,float);

int main()
{
  /* Declarations */
  float valueAverage = 0; /* Average of input values */
  float maxValue = 0;     /* Maximum input value */

  getFloats(&valueAverage, &maxValue);
  printResults(valueAverage, maxValue);
  return(0);
}/* Main */


/******************************
*
* Programmed by:Chris Cadwallader
*
* Function Name:getFloats
*
* Arguments:address of valueAverage and maxValue
*
* Function description:
* Takes user input of floats and calculates
* their average and determines the maximum
* input value.
*
*****************************/
void getFloats(float *valueAverage, float *maxValue)
{
  /* Declarations */
  int divider = 2; /* value to average 2 values */
  float input;     /* input value */

  /* Statements */

  printf("Please input floats to average. When finished enter -999 to terminate.");

  scanf("%f", &input);
  *valueAverage = (input + input)/divider;
  
  while(input != TERMINATE)
  {
    scanf("%f", &input);
    if (input != TERMINATE)
    { 
      *valueAverage = (*valueAverage + input)/divider;
    }/*if*/ 
    if (*maxValue < input)    
    {
      *maxValue = input;
    }/*if*/
  }/*while */
  return;
}/* getValues */


/******************************
*
* Programmed by:Chris Cadwallader
*
* Function Name: printResults
*
* Arguments:float valueAverage //Average of values
* 	float maxValue //Maximum input value
*
* Function description:
* Prints the Results of the previous*
* functions. Output is the average and
* maximum value of input.
*****************************/
void printResults(float valueAverage, float maxValue)
{
  printf("The average value is %f\n", valueAverage);
  printf("The maximum value is %f\n", maxValue);
  return;
}/* printResults */