3 #3

#include
#include
#include
#include
#include
using namespace std;

//3.1
struct Student {
char name[17];
uint16_t year;
float average_score;
uint8_t gender : 1;
uint8_t courses : 7;
Student* head_student;
};

void print_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++) {
cout << hex << uppercase << setw(2) << setfill('0')
<< static_cast(bytes[i]) << " ";
}
cout << dec;
}

void print_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++) {
for (int j = 7; j >= 0; j--) {
cout << ((bytes[i] >> j) & 1);
}
cout << " ";
}
}

//3.2
int main() {
Student students[3];

strcpy(students[0].name, "Tarasova Maria");
students[0].year = 2021;
students[0].average_score = 4.7f;
students[0].gender = 0;
students[0].courses = 4;
students[0].head_student = nullptr;

strcpy(students[1].name, "Novikov Mikhail");
students[1].year = 2024;
students[1].average_score = 4.3f;
students[1].gender = 1;
students[1].courses = 1;
students[1].head_student = &students[0];

strcpy(students[2].name, "Fedorov Andrey");
students[2].year = 2022;
students[2].average_score = 4.4f;
students[2].gender = 1;
students[2].courses = 3;
students[2].head_student = &students[0];

//3.3
cout << "Адрес массива: " << &students << endl;
cout << "Размер массива: " << sizeof(students) << " байт" << endl << endl;

for (int i = 0; i < 3; i++) {
    cout << "Студент " << i << ":" << endl;
    cout << "Адрес: " << &students[i] << endl;
    cout << "Размер: " << sizeof(Student) << " байт" << endl << endl;
}

cout << "name:" << endl;
cout << "  Адрес: " << static_cast<void*>(students[2].name) << endl;
cout << "  Смещение: " << offsetof(Student, name) << endl;
cout << "  Размер: " << sizeof(students[1].name) << " байт" << endl;
cout << "  Heximal: ";
print_hex(students[1].name, sizeof(students[1].name));
cout << endl << "  Binary: ";
print_binary(students[1].name, sizeof(students[1].name));
cout << endl << endl;

cout << "year:" << endl;
cout << "  Адрес: " << &students[1].year << endl;
cout << "  Смещение: " << offsetof(Student, year) << endl;
cout << "  Размер: " << sizeof(students[1].year) << " байт" << endl;
cout << "  Hex: ";
print_hex(&students[1].year, sizeof(students[1].year));
cout << endl << "  Bin: ";
print_binary(&students[1].year, sizeof(students[1].year));
cout << endl << endl;

cout << "average_score:" << endl;
cout << "  Адрес: " << &students[1].average_score << endl;
cout << "  Смещение: " << offsetof(Student, average_score) << endl;
cout << "  Размер: " << sizeof(students[1].average_score) << " байт" << endl;
cout << "  Hex: ";
print_hex(&students[1].average_score, sizeof(students[1].average_score));
cout << endl << "  Bin: ";
print_binary(&students[1].average_score, sizeof(students[1].average_score));
cout << endl << endl;

cout << "head_student:" << endl;
cout << "  Адрес: " << &students[1].head_student << endl;
cout << "  Смещение: " << offsetof(Student, head_student) << endl;
cout << "  Размер: " << sizeof(students[1].head_student) << " байт" << endl;
cout << "  Hex: ";
print_hex(&students[1].head_student, sizeof(students[1].head_student));
cout << endl << "  Bin: ";
print_binary(&students[1].head_student, sizeof(students[1].head_student));
cout << endl << endl;

//3.4
for (int i = 0; i < 3; i++) {
cout << "Студент " << i << (i == 0 ? " (Староста)" : " ") << endl;
print_hex(&students[i], sizeof(Student));
cout << endl;
cout << " name: ";
print_hex(&students[i].name, sizeof(students[i].name));
cout << endl;
cout << " year: ";
print_hex(&students[i].year, sizeof(students[i].year));
cout << endl;
cout << " average_score: ";
print_hex(&students[i].average_score, sizeof(students[i].average_score));
cout << endl;
}

return 0;

}

#include <iostream> #include <iomanip> #include <cstddef> #include <cstdint> #include <cstring> using namespace std; //3.1 struct Student { char name[17]; uint16_t year; float average_score; uint8_t gender : 1; uint8_t courses : 7; Student* head_student; }; void print_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++) { cout << hex << uppercase << setw(2) << setfill('0') << static_cast<int>(bytes[i]) << " "; } cout << dec; } void print_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++) { for (int j = 7; j >= 0; j--) { cout << ((bytes[i] >> j) & 1); } cout << " "; } } //3.2 int main() { Student students[3]; strcpy(students[0].name, "Tarasova Maria"); students[0].year = 2021; students[0].average_score = 4.7f; students[0].gender = 0; students[0].courses = 4; students[0].head_student = nullptr; strcpy(students[1].name, "Novikov Mikhail"); students[1].year = 2024; students[1].average_score = 4.3f; students[1].gender = 1; students[1].courses = 1; students[1].head_student = &students[0]; strcpy(students[2].name, "Fedorov Andrey"); students[2].year = 2022; students[2].average_score = 4.4f; students[2].gender = 1; students[2].courses = 3; students[2].head_student = &students[0]; //3.3 cout << "Адрес массива: " << &students << endl; cout << "Размер массива: " << sizeof(students) << " байт" << endl << endl; for (int i = 0; i < 3; i++) { cout << "Студент " << i << ":" << endl; cout << "Адрес: " << &students[i] << endl; cout << "Размер: " << sizeof(Student) << " байт" << endl << endl; } cout << "name:" << endl; cout << " Адрес: " << static_cast<void*>(students[2].name) << endl; cout << " Смещение: " << offsetof(Student, name) << endl; cout << " Размер: " << sizeof(students[1].name) << " байт" << endl; cout << " Heximal: "; print_hex(students[1].name, sizeof(students[1].name)); cout << endl << " Binary: "; print_binary(students[1].name, sizeof(students[1].name)); cout << endl << endl; cout << "year:" << endl; cout << " Адрес: " << &students[1].year << endl; cout << " Смещение: " << offsetof(Student, year) << endl; cout << " Размер: " << sizeof(students[1].year) << " байт" << endl; cout << " Hex: "; print_hex(&students[1].year, sizeof(students[1].year)); cout << endl << " Bin: "; print_binary(&students[1].year, sizeof(students[1].year)); cout << endl << endl; cout << "average_score:" << endl; cout << " Адрес: " << &students[1].average_score << endl; cout << " Смещение: " << offsetof(Student, average_score) << endl; cout << " Размер: " << sizeof(students[1].average_score) << " байт" << endl; cout << " Hex: "; print_hex(&students[1].average_score, sizeof(students[1].average_score)); cout << endl << " Bin: "; print_binary(&students[1].average_score, sizeof(students[1].average_score)); cout << endl << endl; cout << "head_student:" << endl; cout << " Адрес: " << &students[1].head_student << endl; cout << " Смещение: " << offsetof(Student, head_student) << endl; cout << " Размер: " << sizeof(students[1].head_student) << " байт" << endl; cout << " Hex: "; print_hex(&students[1].head_student, sizeof(students[1].head_student)); cout << endl << " Bin: "; print_binary(&students[1].head_student, sizeof(students[1].head_student)); cout << endl << endl; //3.4 for (int i = 0; i < 3; i++) { cout << "Студент " << i << (i == 0 ? " (Староста)" : " ") << endl; print_hex(&students[i], sizeof(Student)); cout << endl; cout << " name: "; print_hex(&students[i].name, sizeof(students[i].name)); cout << endl; cout << " year: "; print_hex(&students[i].year, sizeof(students[i].year)); cout << endl; cout << " average_score: "; print_hex(&students[i].average_score, sizeof(students[i].average_score)); cout << endl; } return 0; }

comm.txt

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