/* solution-2.c  for exercise-2

	demonstrates the following:

		- functions and  prototypes
		- passing parameters
		- char *  type for strings
		- scanf is a value returning function
		- if/else
		- exit() function
*/

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


void fatal( char * msg); /* fatal function prototype */


int main( )
{
    int inches;

    printf("Enter your height in inches (whole number): ");
    fflush(stdout);
    if (scanf("%d", &inches) != 1)
      fatal("scanf failed on coversion to integer\n");
    if (inches <=0 )
  	  fatal("inches must be greater than 0\n");

    printf("\n%d' %d\"\n",inches/12,inches%12);

    return 0;
}


/* fatal function body */
void fatal( char * msg)
{
  printf("\n%s\n",msg);
  exit( EXIT_FAILURE);
}