#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <conio.h>
void count_alph(char str[], int *ltrs, int *sm, int index);
void sum_digit(char str[], int *ltrs, int *sm, int index);
void main (void)
{
char word[50];
int sum = 0, letters = 0;
printf("Enter a series of letters and numbers (50 character max): ");
scanf("%s", word);
count_alph(word, &letters, &sum, 0);
printf("\nThere are %d letters and the sum of the numbers contained is %d.", letters, sum);
getch();
}
//count alphabetical elements of array
void count_alph(char str[], int *ltrs, int *sm, int index)
{
// valid index?
if (index < strlen(str))
{
// alphabetical?
if (isalpha(str[index]))
{
// increase number of letters
*ltrs = *ltrs + 1;
// check the next one
count_alph(str, ltrs, sm, index++);
}
else
{
// it's a number, handle accordingly
sum_digit(str, ltrs, sm, index);
}
}
}
// sum digits in the array
void sum_digit(char str[], int *ltrs, int *sm, int index)
{
// valid index?
if (index < strlen(str))
{
// digit?
if (isdigit(str[index]))
{
// add the nimber to running sum
*sm += str[index] - '0';
// process the next one
sum_digit(str, ltrs, sm, index++);
}
else
// it's a letter, handle accordingly
count_alph(str, ltrs, sm, index);
}
}I wind up getting this.
The error seems to spring up in whatever function the type of the first element is. For instance, if I input "6tF" the error is in the sum function, and if I input "FFTTreyrty7" the error is in the alpha function.
Any and all help appreciated. I don't even need to know how to fix it if you can just tell me what I did wrong.
Many thanks.
EDIT:
After messing around with it I see that I have infinite recursion. If anyone wants to point out where I muffed up I'd be appreciative.
EDIT2:
I'm an idiot. index++ should by ++index.
Thanks for nothing/making me figure it out on my own. Locking.
