test

#include <stdio.h>
#include <iostream>

typedef unsigned char b_t; //byte type
typedef unsigned short ush;

using namespace std;




ush index() {
    printf("Enter bit index (0..7): ");
    size_t bit_i;
    scanf("%d", &bit_i);
    ush bit = bit_i & 8;
    return bit;
}


ush get(b_t b, ush i) {
    return (b >> (i % 8)) & 1;
}


b_t on(b_t b, ush i) {
    return b | (1 << (i % 8));
}


b_t off(b_t b, ush i) {
    return b & ~(1 << (i % 8));
}


b_t toggle(b_t b, ush i) {
    return b ^ (1 << (i % 8));
}


void print_b(b_t b) {
    for (short i = 7; i >= 0; --i) {
        printf("%d", get(b, i));
    }
}


b_t change_b(b_t b, b_t(*f)(b_t, ush)) {
    ush bit = index();
    print_b(b);
    b = f(b, bit);
    printf("\n Starting...\n");
    for (int i = 0; i < 3; ++i) {
        printf(".");
        _sleep(2);
    }
    printf("\n Done. \n New byte: ");
    print_b(b);
    printf("\n");
    return b;
}



void main() {
    printf("Enter value (0..255): \n");
    int byte;
    scanf("%i", &byte);
    system("cls");

    bool flag = true;
    while (flag) {
        printf("Choose action:\n");
        printf(" 0 - Print current byte\n");
        printf(" 1 - Turn bit on\n");
        printf(" 2 - Turn bit off\n");
        printf(" 3 - Toggle bit\n");
        printf(" 4 - Get bit\n");
        printf(" 5 - Enter a new number\n");
        printf(" q - Exit\n");
        char n;
        scanf(" %с", &n);

        switch (n) {

        case '0': {
            printf("Enter value (0-255): \n");
            scanf("%i", &byte);
            break;
        }

        case '1':{
            byte = change_b(byte, on);
            break;
        }

        case '2':{
            byte = change_b(byte, off);
            break;
        }

        case '3':{
            byte = change_b(byte, toggle);
            break;
        }

        case '4': {
            ush bit = index();
            printf("The bit at index %d is %d\n", bit, get(byte, bit));
            break;
        }

        case '5':{
            printf("Enter value (0..255): \n");
            scanf("%i", &byte);
            break;
        }
        case 'q':
            flag = false;
            break;

        default:
            printf("Try again.\n");
            break;

        }
    }

}