int numeralToInteger(char *numeral) {
int i, len = strlen(numeral);
int totalForNumeral = 0;
char thisChar[] = " ";
char *numeralPtr = numeral + len -1;
int thisVal;
int prevVal = 0;
for (i = len; i > 0; i--) {
memcpy(thisChar, numeralPtr--, sizeof(int));
thisVal = charToInteger(thisChar);
if (thisVal < prevVal) {
totalForNumeral -= thisVal;
}
else {
totalForNumeral += thisVal;
}
prevVal = thisVal;
}
return totalForNumeral;
}
int sumOfDigit(char num[], int length) {
int i;
int sum = 0;
for (i = 0; i < length; i++) sum += charToInteger(num[i]);
return sum;
} // end sumOfDigit
