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

bool count_consecutive_chars(char ch, int* a_num_occurrences, char** a_pos) {
    *a_num_occurrences = 0;
    while(**a_pos == ch) {
        *a_num_occurrences += 1; // increment the 'int' variable within main(…)'s stack frame
        *a_pos += 1;  // increment the 'char*' variable; Think of this as advancing the "cursor", which lives in main(…)'s stack frame.
    }
    return (*a_num_occurrences >= 1 ? true : false);   // ≡ return (*a_num_occurrences >= 1)
}

int main(int argc, char* argv[]) {

    char* input = "aaabbcccc";  // address of the first character in the string (on the data segment)
    char* pos   = input;        // address of the next character to look at; like a "cursor"
    int num_occurrences;        // will be initialized by count_consecutive_chars(…)
    char char_to_search_for = 'a';
    bool found_any = count_consecutive_chars(char_to_search_for, &num_occurrences, &pos);

    log_char(char_to_search_for);
    log_int(num_occurrences);
    log_bool(found_any);
    printf("\n");
    
    return EXIT_SUCCESS;
}

// *a_num_occurrences refers to the value at (address) a_num_occurrences.
//
// int* is a type for variables that contain the address of an int.

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