Изменил(а) на '3.cpp'
Этот коммит содержится в:
178
3.cpp
178
3.cpp
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#include <cstdint>
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#include <iostream>
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#include <iostream>
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#include <iomanip>
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#include <iomanip>
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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using namespace std;
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using namespace std;
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struct Student {
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char to_hex_char(uint8_t value) {
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char name[17];
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static const char hex_table[] = "0123456789ABCDEF";
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uint16_t year;
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return hex_table[value];
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float average_score;
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uint8_t gender : 1;
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uint8_t courses : 7;
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Student* head_student;
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};
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void print_hex(const void* data, size_t size) {
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const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
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for (size_t i = 0; i < size; i++) {
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cout << hex << uppercase << setw(2) << setfill('0')
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<< static_cast<int>(bytes[i]) << " ";
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}
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cout << dec;
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}
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}
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void print_binary(const void* data, size_t size) {
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void print_hex_byte(uint8_t byte) {
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const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
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cout << to_hex_char(byte >> 4) << to_hex_char(byte & 0x0F);
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for (size_t i = 0; i < size; i++) {
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}
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for (int j = 7; j >= 0; j--) {
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cout << ((bytes[i] >> j) & 1);
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void print_hex_number(uint16_t value) {
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}
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uint8_t* bytes = reinterpret_cast<uint8_t*>(&value);
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cout << " ";
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print_hex_byte(bytes[0]);
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cout << " ";
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print_hex_byte(bytes[1]);
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}
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void print_binary_byte(uint8_t byte) {
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for (int i = 7; i >= 0; --i) {
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cout << ((byte >> i) & 1);
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}
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}
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}
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}
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void print_binary_number(uint16_t value) {
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uint8_t* bytes = reinterpret_cast<uint8_t*>(&value);
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print_binary_byte(bytes[0]);
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print_binary_byte(bytes[1]);
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}
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int main() {
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int main() {
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Student students[3];
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uint16_t input1, input2;
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char operation;
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strcpy(students[0].name, "Ivanov Ivan");
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cin >> input1 >> operation >> input2;
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students[0].year = 2023;
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students[0].average_score = 4.5f;
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students[0].gender = 1;
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students[0].courses = 2;
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students[0].head_student = nullptr;
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strcpy(students[1].name, "Petrova Anna");
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uint16_t outcome;
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students[1].year = 2023;
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switch (operation) {
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students[1].average_score = 4.8f;
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case '&':
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students[1].gender = 0;
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outcome = input1 & input2;
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students[1].courses = 2;
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break;
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students[1].head_student = &students[0];
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case '|':
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outcome = input1 | input2;
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strcpy(students[2].name, "Sidorov Petr");
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break;
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students[2].year = 2023;
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case '^':
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students[2].average_score = 4.2f;
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outcome = input1 ^ input2;
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students[2].gender = 1;
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break;
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students[2].courses = 2;
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default:
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students[2].head_student = &students[0];
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cout << "Ошибка: доступны только &, | и ^" << endl;
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return 1;
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cout << "1. Информация о массиве:" << endl;
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cout << "Адрес массива: " << &students << endl;
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cout << "Размер массива: " << sizeof(students) << " байт" << endl << endl;
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cout << "2. Информация об элементах массива:" << endl;
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for (int i = 0; i < 3; i++) {
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cout << "Студент " << i << ":" << endl;
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cout << "Адрес: " << &students[i] << endl;
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cout << "Размер: " << sizeof(Student) << " байт" << endl << endl;
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}
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}
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cout << "3. Детальная информация о полях второго студента:" << endl;
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cout << input1 << " " << operation << " " << input2 << endl;
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cout << "name:" << endl;
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print_hex_number(input1);
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cout << " Адрес: " << static_cast<void*>(students[1].name) << endl;
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cout << " " << operation << " ";
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cout << " Смещение: " << offsetof(Student, name) << endl;
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print_hex_number(input2);
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cout << " Размер: " << sizeof(students[1].name) << " байт" << endl;
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cout << " = ";
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cout << " Hex: ";
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print_hex_number(outcome);
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print_hex(students[1].name, sizeof(students[1].name));
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cout << endl;
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cout << endl << " Bin: ";
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print_binary(students[1].name, sizeof(students[1].name));
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cout << endl << endl;
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cout << "year:" << endl;
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print_binary_number(input1);
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cout << " Адрес: " << &students[1].year << endl;
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cout << " " << operation << endl;
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cout << " Смещение: " << offsetof(Student, year) << endl;
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print_binary_number(input2);
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cout << " Размер: " << sizeof(students[1].year) << " байт" << endl;
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cout << " =" << endl;
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cout << " Hex: ";
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print_binary_number(outcome);
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print_hex(&students[1].year, sizeof(students[1].year));
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cout << endl;
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cout << endl << " Bin: ";
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print_binary(&students[1].year, sizeof(students[1].year));
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cout << endl << endl;
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cout << "average_score:" << endl;
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cout << " Адрес: " << &students[1].average_score << endl;
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cout << " Смещение: " << offsetof(Student, average_score) << endl;
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cout << " Размер: " << sizeof(students[1].average_score) << " байт" << endl;
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cout << " Hex: ";
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print_hex(&students[1].average_score, sizeof(students[1].average_score));
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cout << endl << " Bin: ";
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print_binary(&students[1].average_score, sizeof(students[1].average_score));
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cout << endl << endl;
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cout << "head_student:" << endl;
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cout << " Адрес: " << &students[1].head_student << endl;
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cout << " Смещение: " << offsetof(Student, head_student) << endl;
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cout << " Размер: " << sizeof(students[1].head_student) << " байт" << endl;
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cout << " Hex: ";
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print_hex(&students[1].head_student, sizeof(students[1].head_student));
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cout << endl << " Bin: ";
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print_binary(&students[1].head_student, sizeof(students[1].head_student));
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cout << endl << endl;
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cout << "4. Шестнадцатеричное представление структур:" << endl;
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for (int i = 0; i < 3; i++) {
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cout << "Студент " << i << " (староста: " << (i == 0 ? "да" : "нет") << "):" << endl;
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cout << " Все поля: ";
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print_hex(&students[i], sizeof(Student));
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cout << endl;
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cout << " name: ";
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print_hex(&students[i].name, sizeof(students[i].name));
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cout << endl;
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cout << " year: ";
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print_hex(&students[i].year, sizeof(students[i].year));
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cout << endl;
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cout << " average_score: ";
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print_hex(&students[i].average_score, sizeof(students[i].average_score));
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cout << endl;
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// Получаем значение байта, содержащего битовые поля
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uint8_t bit_fields = (students[i].gender << 7) | students[i].courses;
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cout << " gender и courses (как байт): ";
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print_hex(&bit_fields, sizeof(bit_fields));
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cout << endl;
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cout << " head_student: ";
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print_hex(&students[i].head_student, sizeof(students[i].head_student));
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cout << endl << endl;
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}
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return 0;
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return 0;
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}
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}
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