1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#include "log_macros.h"

/*
void get_first_char(char** a_pos, char* a_ch) {
    char first_character = (*a_pos)[0];
    *a_ch = first_character;
}
*/

void get_next_char(char** a_pos, char* a_ch) {
    char ch = (*a_pos)[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.
}


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

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

    get_next_char(&pos, &current_char);
    log_char(current_char);

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

© Copyright 2023 Alexander J. Quinn         This content is protected and may not be shared, uploaded, or distributed.