2 курс. Программирование на C++. Турнир 2, осень 2021

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5785547

Пользователь

Псарев Александр Павлович

Время

16:09<< 16.11.2021 16:11 (27 д. 14:12) 16:12>>

Обработка

16:11 ... 16:11 (3,35 сек.)

Файл

5785547.cpp (CLang++ 5.0.0 + Address Sanitizer)

Турнир

2 курс. Программирование на C++. Турнир 2, осень 2021

Задача

C: Smart Pointer

Набор тестов

Ограничения

Время: 25с Память: 512Мб

Состояние [?]

LI	Ошибка проверки исходного кода

код | результаты

SmartPointer.hpp:21:  "public:" should be preceded by a blank line  [whitespace/blank_line] [3]
SmartPointer.hpp:99:  Missing space before {  [whitespace/braces] [5]
SmartPointer.hpp:172:  Namespace should be terminated with "// namespace smart_pointer"  [readability/namespace] [5]
Done processing SmartPointer.hpp
Total errors found: 3

[печатать | | ]

≡

#pragma once

#include <memory>
#include "Test.hpp"

namespace smart_pointer {
// `exception` class definition
class exception : std::exception {
using base_class = std::exception;
using base_class::base_class;
};

// `SmartPointer` class declaration
template<
typename T,
typename Allocator
>
class SmartPointer {
// don't remove this macro
ENABLE_CLASS_TESTS;
 public:
using value_type = T;

explicit SmartPointer(value_type* value = nullptr) {
if (value == nullptr) {
this->core = nullptr;
} else {
this->core = new Core();
this->core->pointer = value;
this->core->count = 1;
}
}
// copy constructor
SmartPointer(const SmartPointer & obj) {
this->core = obj.core;
if (obj.core != nullptr) {
this->core->count++;
}
}
// move constructor
SmartPointer(SmartPointer && obj) {
    this->core = obj.core;
    obj.core = nullptr;
}
// copy assigment
SmartPointer &operator=(const SmartPointer & obj) {
if (this->core->count > 1) {
this->core = obj.core;
return *this;
} else {
delete this->core;
this->core = obj.core;
return *this;
}
}
// move assigment
SmartPointer &operator=(SmartPointer && obj) {
if (this->core->count > 1) {
this->core = obj.core;
obj.core = nullptr;
return *this;
} else {
delete this->core;
this->core = obj.core;
obj.core = nullptr;
return *this;
}
}
//
SmartPointer &operator=(value_type *obj) {
if (this->core->count > 1) {
if (obj != nullptr) {
this->core = new Core();
this->core->pointer = obj;
this->core->count = 1;
} else {
this->core = nullptr;
}
return *this;
} else {
delete this->core;
if (obj != nullptr) {
this->core = new Core();
this->core->pointer = obj;
this->core->count = 1;
} else {
this->core = nullptr;
}
return *this;
}
}
~SmartPointer() {
if (this->core->count <= 1) {
delete this->core;
}
}
// return reference to the object of class/type T
// if SmartPointer contains nullptr throw `SmartPointer::exception`
value_type &operator*(){
if(this->core == nullptr) {
throw smart_pointer::exception();
} else {
return *(this->core->ptr);
}
}
const value_type &operator*() const {
if(this->core == nullptr) {
throw smart_pointer::exception();
} else {
return *(this->core->ptr);
}
}
// return pointer to the object of class/type T
value_type *operator->() const {
if (this->core == nullptr) {
return nullptr;
} else {
return this->core->pointer;
}
}
value_type *get() const {
if (this->core == nullptr) {
return nullptr;
} else {
return this->core->pointer;
}
}
// if pointer == nullptr => return false
operator bool() const {
if(this->core->pointer == nullptr) {
return false;
} else {
return true;
}
}
// if pointers points to the same address or both null => true
template<typename U, typename AnotherAllocator>
bool operator==(const SmartPointer<U, AnotherAllocator> & ptr) const {
if (static_cast<void*>(this->get()) == static_cast<void*>(ptr.get())) {
return true;
} else {
return false;
}
}
// if pointers points to the same address or both null => false
template<typename U, typename AnotherAllocator>
bool operator!=(const SmartPointer<U, AnotherAllocator> & ptr) const {
if (static_cast<void*>(this->get()) == static_cast<void*>(ptr.get())) {
return false;
} else {
return true;
}
}
// if smart pointer contains non-nullptr => return count owners
// if smart pointer contains nullptr => return 0
std::size_t count_owners() const {
if (this->core != nullptr) {
return this->core->count;
} else {
return 0;
}
}

private:
class Core {
 public:
size_t count;
value_type* pointer;
}
Core *core;
};
}

(3 619 b)

0.036s 0.008s 10