<pre> //====================== start of sample.cpp ========================== class Region { short country_code; short city_code; char* city_name; public: Region(); short get_country_code() { return country_code; } inline short get_city_code() const; const char* get_city_name() const; }; Region::Region() : country_code(0) , city_code(0) , city_name(0) {} inline short Region::get_city_code() const { return city_code; } const char* Region::get_city_name() const { return city_name; } //====================== end of sample.cpp ========================== </pre> Какие из методов являются встроенными и объявлены корректно?
<pre>//====================== start of sample.cpp ========================== #include <stdio.h> class Region; class Person { public: short m_age; const char* m_name; const char* m_surname; const char* m_region_name; Person(const char* name) : m_name(name) {} operator short () {return m_age;} operator const char* () {return "";} }; class Region { public: const char* region_name; const char* cheef_name; long size; Region(const char* region_nm = "") : region_name(region_nm) {} operator long () {return size;} operator const char* () {return region_name;} }; int main() { Person p1("Vasily Ivanov"); Region r; printf("Region number %u, driver %s", static_cast<unsigned short>(r), static_cast<const char*>(p1)); return 0; }//====================== end of sample.cpp ========================== </pre> Какие из имеющихся в файле sample.cpp конструкторов и операторов преобразования задействованы в операциях в функции main()?
<pre>//====================== start of sample.cpp ========================== class Region; class Person { public: short m_age; const char* m_name; const char* m_surname; const char* m_region_name; Person(const char* name) : m_name(name) {} operator short () {return m_age;} operator const char* () {return "";} operator Region* (); }; class Region { public: const char* region_name; const char* cheef_name; long size; Region(const char* region_nm) : region_name(region_nm) {} operator long () {return size;} operator const char* () {return region_name;} operator Person () {return Person(cheef_name);} }; Person::operator Region* () {return new Region(m_region_name);}//====================== end of sample.cpp ========================== </pre> Какие операторы преобразования класса Person не являются корректными с точки зрения архитектуры?
<pre>//====================== start of sample.cpp ========================== #include <vector> class Person { public: short m_age; const char* m_name; const char* m_surname; const char* m_region_name; }; class Region { public: const char* region_name; const char* cheef_name; long size; }; int main() { std::vector<unsigned char>* mybuffer = new std::vector<unsigned char>(sizeof(Person) + sizeof(Region), 0); Person* my_person = new (&(mybuffer->at(0))) Person(); my_person->~Person(); delete my_person; Region* p_region = new (&(mybuffer->at(0))) Region(); p_region->~Region(); delete p_region; delete mybuffer; return 0; }//====================== end of sample.cpp ========================== </pre> Какие операции освобождений ресурсов в файле sample.cpp являются лишними или ошибочными?
<pre>//====================== start of sample.cpp ========================== class Person { public: short m_age; const char* m_name; const char* m_surname; }; class Library { public: long m_books_count; std::string m_name; static std::string m_city; }; class Program { public: std::string prog_name; long version; void* prog_data; }; class Region { public: short country_code; short city_code; std::shared_ptr<Library< main_library; };//====================== end of sample.cpp ========================== </pre> Для какого из классов в фрагменте файла sample.cpp необходима реализация своего оператора копирования?
<pre> //====================== start of sample.cpp ========================== class User { public: const char* get_name() const; inline int get_age const; private: volatile double get_balance(); mutable char* get_job_name(); protected: long long get_phone_number(); static int get_phone_prefix(); }; //====================== end of sample.cpp ========================== </pre> Какие методы класса User объявлены корректно?
<pre> //====================== start of sample.cpp ========================== class Program { const char* prog_name; long threads_count; mutable double time_of_work; public: const char* get_name() const { return prog_name; } long get_threads_count() { return threads_count; } bool set_time_of_work(double in_time) const { time_of_work = in_time; return true; } bool add_time_of_work(double in_time) { time_of_work += in_time; return true; } }; const Program& get_my_program(); int main() { const Program& prg = get_my_program(); const char* prg_name1 = prg.get_name(); long my_thr_count1 = prg.get_threads_count(); bool result1 = prg.add_time_of_work(1); Program& prg2 = const_cast<Program& >(prg); long my_thr_count2 = prg2.get_threads_count(); bool result2 = prg2.set_time_of_work(0); bool result3 = prg2.add_time_of_work(1); return 0; } //====================== end of sample.cpp ========================== </pre> При присвоении значений каким переменным в файле sample.cpp корректно используются корректно определённые методы?
<pre>//====================== start of sample.cpp ========================== #include <vector> class Person { short m_age; const char* m_name; const char* m_surname; public: Person(short age, const char* name, const char* subname) : m_age(age), m_name(name), m_surname(subname){} Person() : m_name("unknown"){} }; class Reader: public Person { long m_ticket_number; public: Reader(long tick_numb = 0) : Person() , m_ticket_number(tick_numb) {} Reader(short age, const char* name, const char* surname, long tick_numb) : Person(age, name, surname) , m_ticket_number(tick_numb){} }; int main() { Reader reader1; Reader reader2 = 35; Reader reaedr3(22, "Vasily", "Ivanov", 123456); return 0; }//====================== end of sample.cpp ========================== </pre> Значения каких атрибутов каких объектов корректно инициализируются не нулевыми значениями?
<pre> //====================== start of sample.cpp ========================== int main(int argc, char* argv[]) { const int a = 0; int b = 0; const int X = 0; int Y = 0; int Z = 0; auto lf1 = [&Y, Z, &a, &b, X] (double x) {return x > 0;}; return 0; } //====================== end of sample.cpp ========================== </pre> Значения каких переменным лямбда функция lf1 может изменить?
<pre>//====================== start of sample.cpp ========================== struct Book { short year; char* author; char* name; }; class Person { short m_age; const char* m_name; const char* m_subname; public: Person(short age, const char* name, const char* subname) : m_age(age), m_name(name), m_subname(subname){} }; class Library { public: long m_books_count; char* m_name; char* m_city; Library(long books_count): m_books_count(books_count){} }; int main() { Book book1 = {"Owrell", 1984, "1984"}; Book book2 = {1984}; Person main_author = {65, "Bjarne", "Stroustrup"}; Person my_author(65, "Bjarne", "Stroustrup"); Library my_lib = 25; return 0; }//====================== end of sample.cpp ========================== </pre> Инициализация каких объектов в файле sample.cpp выполнена корректно?
