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


bool get_next_char(char** a_pos, char* a_ch) {
    // If any character other than '\0' was found...
    // - Set *a_pos to the next character.
    //   (IOW, store the address of the next character at address a_pos.)
    // - Set *a_ch to the character found.
    //   (IOW, store the character found at address a_ch.)
    // - Return true.
    // If '\0 was found...
    // - Return false.
    char ch = (*a_pos)[0];
    if(ch != '\0') {
        *a_ch = ch;   // return character by address
        *a_pos += 1;  // Increment current position in string
        // WARNING:  Do not use *a_pos++;  There will be precedence issues.
        return true;
    }
    else {
        return false;
    }
}


int main(int argc, char* argv[]) {
    char* s = "AAABBBB";  // 3 x 'A' then 4 x 'B'
    char* pos = s;
    char current_char;

    while(get_next_char(&pos, &current_char)) {
        log_char(current_char);
    }

    return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */