From a478b0879432bbcd28351e5cb4e4e7f757f5df5f Mon Sep 17 00:00:00 2001
From: GorokhovDE <GorokhovDE@mpei.ru>
Date: Mon, 23 Dec 2024 10:52:10 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B0=20=D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0=20=D0=B8?=
 =?UTF-8?q?=D0=B7=20.pdf=20=D1=84=D0=B0=D0=B9=D0=BB=D0=B0?=
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---
 lab04/lab04-pdf.cpp | 107 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 lab04/lab04-pdf.cpp

diff --git a/lab04/lab04-pdf.cpp b/lab04/lab04-pdf.cpp
new file mode 100644
index 0000000..1723855
--- /dev/null
+++ b/lab04/lab04-pdf.cpp
@@ -0,0 +1,107 @@
+#include <iostream>
+#include <cassert>
+#include <cstdint> // Для uint8_t, uint16_t
+#include <cstring> // Для работы с C-style строками
+#include <iomanip>  // Для вывода в формате hex
+
+using namespace std;
+
+// Печать байта в шестнадцатеричном виде
+void print_in_hex(uint8_t byte) {
+    cout << hex << uppercase << (byte >> 4) << (byte & 0x0F) << ' ';
+}
+
+// Печать массива в шестнадцатеричном виде
+void print_in_hex(const void* data, size_t size) {
+    const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
+    for (size_t i = 0; i < size; i++) {
+        print_in_hex(bytes[i]);
+        if ((i + 1) % 16 == 0) cout << '\n';
+    }
+    cout << dec << '\n'; // Возвращаем десятичный формат
+}
+
+// Печать байта в двоичном виде
+void print_in_binary(uint8_t byte) {
+    for (int i = 7; i >= 0; --i) {
+        cout << ((byte >> i) & 1);
+    }
+    cout << ' ';
+}
+
+// Печать массива в двоичном виде
+void print_in_binary(const void* data, size_t size) {
+    const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
+    for (size_t i = 0; i < size; i++) {
+        print_in_binary(bytes[i]);
+        if ((i + 1) % 4 == 0) cout << '\n';
+    }
+    cout << '\n';
+}
+
+void bitwise_calculator() {
+    uint16_t operand1, operand2;
+    char op;
+    cout << "Enter first operand (uint16_t): ";
+    cin >> operand1;
+    cout << "Enter operator (&, |, ^): ";
+    cin >> op;
+    cout << "Enter second operand (uint16_t): ";
+    cin >> operand2;
+
+    uint16_t result = 0;
+    switch (op) {
+    case '&': result = operand1 & operand2; break;
+    case '|': result = operand1 | operand2; break;
+    case '^': result = operand1 ^ operand2; break;
+    default:
+        cerr << "Invalid operator!\n";
+        return;
+    }
+
+    cout << "Result in hex: ";
+    print_in_hex(&result, sizeof(result));
+
+    cout << "Result in binary: ";
+    print_in_binary(&result, sizeof(result));
+}
+
+struct Student {
+    char name[17];           // Имя студента
+    uint16_t year;           // Год поступления
+    float average_score;     // Средний балл
+    uint8_t gender : 1;      // Пол: 0 - женский, 1 - мужской
+    uint8_t completed_courses; // Количество курсов
+    Student* group_leader;   // Указатель на старосту
+};
+
+void test_students() {
+    Student students[3] = {
+        {"Alice", 2020, static_cast<float>(4.5), 0, 3, nullptr},
+        {"Bob", 2021, static_cast<float>(4.0), 1, 2, nullptr},
+        {"Charlie", 2020, static_cast<float>(4.2), 1, 5, nullptr}
+    };
+
+    // Печать адресов и размеров
+    cout << "Array address: " << &students << ", size: " << sizeof(students) << " bytes\n";
+    for (size_t i = 0; i < 3; ++i) {
+        cout << "Student " << i + 1 << " address: " << &students[i] << ", size: " << sizeof(students[i]) << " bytes\n";
+    }
+
+    // Печать всех полей
+    for (const auto& student : students) {
+        cout << "Name: " << student.name << ", Address: " << (void*)student.name << '\n';
+        cout << "Year: " << student.year << ", Address: " << &student.year << '\n';
+        cout << "Average Score: " << student.average_score << ", Address: " << &student.average_score << '\n';
+        cout << "Gender: " << static_cast<int>(student.gender) << '\n';
+        cout << "Completed Courses: " << static_cast<int>(student.completed_courses) << '\n';
+        cout << "Group Leader Address: " << student.group_leader << "\n\n";
+    }
+}
+
+int main() {
+    // Вызов функций
+    bitwise_calculator();
+    test_students();
+    return 0;
+}