#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>


int main(int argc, char* argv[]) {
    char s[] = "The rabid panther roller skates through malt shakes.";
    char* pos = &s[0];  //  same as:  char* pos = s;
    char END_CHAR = '\0';
    char ch = find_next_vowel(&pos);
    while(ch != END_CHAR) {
        printf("Next vowel:  '%c'\n", ch);
        ch = find_next_vowel(&pos);
    }
    return EXIT_SUCCESS;
}
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