создаем переменные u8, u16 и u32, присваиваем им значение 0x42

main.cpp

@@ -28,7 +28,29 @@ void print_in_hex(uint8_t byte) {
     cout << endl;
 }
 
+const uint8_t* as_bytes(const void* data) {
+    return reinterpret_cast<const uint8_t*>(data);
+};
+
+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]);
+
+        // Äëÿ óäîáñòâà ÷òåíèÿ: ïðîáåëû ìåæäó áàéòàìè, ïî 16 áàéò íà ñòðîêó.
+        if ((i + 1) % 16 == 0) {
+            cout << '\n';
+        } else {
+            cout << ' ';
+        }
+    }
+    cout << endl;
+}
+
+
 int main() {
+
+
     // Òåñòèðîâàíèå ôóíêöèè nibble_to_hex
     //for (int i = 0; i <= 0xf; ++i) {
         //assert(nibble_to_hex(i) == nibble_to_hex(i));
@@ -52,8 +74,26 @@ int main() {
     assert(nibble_to_hex(0xf) == 'f');
 
     // Ïå÷àòü áàéòà â øåñòíàäöàòåðè÷íîé è äâîè÷íîé ôîðìå
-    uint8_t test_byte = 0x2f;
+    //uint8_t test_byte = 0x2f;
-    print_in_hex(test_byte);
+    //uint8_t test_byte = 0x0;
+    //uint8_t test_byte = 0xab;
+    //uint8_t test_byte = 0xff;
+
+    uint8_t u8 = 0x42;
+    uint16_t u16 = 0x42;
+    uint32_t u32 = 0x42;
+
+    std::cout << "u8 bytes: ";
+    print_in_hex(&u8, sizeof(u8));
+    std::cout << '\n';
+
+    std::cout << "u16 bytes: ";
+    print_in_hex(&u16, sizeof(u16));
+    std::cout << '\n';
+
+    std::cout << "u32 bytes: ";
+    print_in_hex(&u32, sizeof(u32));
+    std::cout << '\n';
 
     return 0;
 }