result/lab04_LitvinovaAnna/Task1/main.cpp

#include <cassert>
#include <cstdint>
#include <iostream>

// Òàáëèöà äëÿ ïåðåâîäà ïîëóáàéòà â ñèìâîë hex (lowercase)
static char to_hex_digit(uint8_t nibble) {
    assert(nibble < 16);
    constexpr char digits[] = "0123456789abcdef";
    return digits[nibble];
}

// Ïå÷àòü îäíîãî áàéòà â hex (äâà ñèìâîëà)
void print_in_hex(uint8_t byte) {
    std::cout << to_hex_digit(byte >> 4) << to_hex_digit(byte & 0x0F);
}

// Ïå÷àòü ïðîèçâîëüíîãî áëîêà äàííûõ â hex, ïðîáåëû ìåæäó áàéòàìè, ïåðåíîñ ïîñëå 16
void print_in_hex(const void* data, size_t size) {
    const auto* bytes = static_cast<const uint8_t*>(data);
    for (size_t i = 0; i < size; ++i) {
        print_in_hex(bytes[i]);
        if (i + 1 < size) {
            std::cout << ' ';
            if ((i + 1) % 16 == 0) std::cout << '\n';
        }
    }
}

// Ïå÷àòü îäíîãî áàéòà â áèíàðíîì âèäå (8 ñèìâîëîâ)
void print_in_binary(uint8_t byte) {
    for (int bit = 7; bit >= 0; --bit) {
        std::cout << (((byte >> bit) & 1) ? '1' : '0');
    }
}

// Ïå÷àòü áëîêà äàííûõ â áèíàðíîì âèäå, ïðîáåë ìåæäó áàéòàìè, ïåðåíîñ ïîñëå 4 áàéò
void print_in_binary(const void* data, size_t size) {
    const auto* bytes = static_cast<const uint8_t*>(data);
    for (size_t i = 0; i < size; ++i) {
        print_in_binary(bytes[i]);
        if (i + 1 < size) {
            std::cout << ' ';
            if ((i + 1) % 4 == 0) std::cout << '\n';
        }
    }
}

int main() {
    // Ìèíè-òåñòû hex-òàáëèöû
    assert(to_hex_digit(0) == '0');
    assert(to_hex_digit(10) == 'a');
    assert(to_hex_digit(15) == 'f');

    // Äåìîíñòðàöèÿ ðàáîòû ïå÷àòè
    uint32_t sample = 0x1234ABCD;
    std::cout << "Hex dump:\n";
    print_in_hex(&sample, sizeof(sample));
    std::cout << "\n\nBinary dump:\n";
    print_in_binary(&sample, sizeof(sample));
    std::cout << '\n';
    return 0;
}