I'm creating a program that will test a range of temperatures for validity. I have become stuck, in this case am trying to print a message saying invalid input when a user enters a value not in the range of 425 - 435.
Code:
#include <stdio.h>
#define sentinel 999
int
main(void)
{
int temp;
double valid;
printf ("Enter the number 999 when you are finished entering numbers.\n\n");
printf ("Enter the temperature range :", sentinel);
scanf("%d", &temp);
while (temp != sentinel ) {
valid = 1;
while (valid) {
if (temp > 425 && temp < 435)
valid = 0;
}
printf("The product cure temperature is good!\n");
break;
}
return (0);
}