lab4/task1_2/task1_2.cpp

#include <iostream>
using namespace std;
char digits[] = "0123456789ABCDEF";

const uint8_t*
as_bytes(const void* data) {
	return reinterpret_cast<const uint8_t*>(data);
}

char nibble_to_hex(uint8_t i) {
	return digits[i & 0xf];
}
void print_in_hex(uint8_t byte) {
	cout << nibble_to_hex(byte >> 4)
		<< nibble_to_hex(byte & 0xf);
}
void print_in_hex(const void* data, size_t size) {
	const uint8_t *bytes = as_bytes(data);
	for (size_t i = 0; i < size; i++) {
		print_in_hex(bytes[i]);
		if ((i + 1) % 16 == 0) {
			cout << '\n';
		}
		else {
			cout << ' ';
		}
	}
}
char bit_digit(uint8_t byte, uint8_t bit) {
	if (byte &(0x1 << bit)) {
		return '1';
	}
	return '0';
}

void print_in_binary(uint8_t byte) {
	for (int bit = 7; bit >= 0; bit--) {
		cout << bit_digit(byte, bit);
	}
}
void print_in_binary(const void* data, size_t size) {
	const uint8_t *bytes = as_bytes(data);
	for (size_t i = 0; i < size; i++) {
		print_in_binary(bytes[i]);
		if ((i + 1) % 4 == 0) {
			cout << '\n';
		}
		else {
			cout << ' ';
		}
	}
}
int main() {
	uint16_t c1, c2, result = 0;
	char operation[8];
	bool calculated = false;
	cout << "Input expression: ";
	cin >> c1 >> operation >> c2;
	switch (operation[0]) {
	case '&':
		result = c1&c2;
		calculated = true;
		break;
	case '|':
		result = c1 | c2;
		calculated = true;
		break;
	case '^':
		result = c1 ^ c2;
		calculated = true;
		break;
	default:
		cout << "Unknown operation\n";
		break;
	}
	if (calculated) {
		print_in_hex(&c1, sizeof(uint16_t));
		cout << " & ";
		print_in_hex(&c2, sizeof(uint16_t));
		cout << " = ";
		print_in_hex(&result, sizeof(uint16_t));
		cout << "\n";
		print_in_binary(&c1, sizeof(uint16_t));
		cout << " &\n";
		print_in_binary(&c2, sizeof(uint16_t));
		cout << " =\n";
		print_in_binary(&result, sizeof(uint16_t));
		cout << "\n";
	}
	cin >> result;
}