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

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5793407

Пользователь

Бурачинский Александр Дмитриевич

Время

17:18<< 18.11.2021 17:20 (19:36) 17:20>>

Обработка

17:20 ... 17:20 (3,83 сек.)

Файл

5793407.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:148:  public: should be indented +1 space inside class Core  [whitespace/indent] [3]
SmartPointer.hpp:64:  Add #include <utility> for move  [build/include_what_you_use] [4]
Done processing SmartPointer.hpp
Total errors found: 2

[печатать | | ]

≡

#pragma once

#include<string>
#include<iostream>
#include<fstream>
#include<vector>
#include<iomanip>
#include<sstream>
#include<cmath>
#include <cstdio>
#include <algorithm>
#include <stack>
#include <functional>
#include <set>
#include <queue>
#include <memory>
#include <map>
#include <cassert>

using std::exchange;
using std::move;
using std::size_t;

#include "Test.hpp"

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

template<typename T, typename Allocator>
class SmartPointer {
ENABLE_CLASS_TESTS;

public:
    using value_type = T;

explicit SmartPointer(value_type* x = nullptr) :
        core((x == nullptr ? nullptr : new Core(x))) {
    }

SmartPointer(const SmartPointer& oth) :
        core(oth.core != nullptr ? oth.core : nullptr) {
        if (core != nullptr) {
            this->core->c++;
        }
    }

SmartPointer(SmartPointer&& oth) :
        core(exchange(oth.core, nullptr)) { }

SmartPointer& operator=(const SmartPointer& oth) {
        this->~SmartPointer();
        this->core = oth.core;
        if (this->core != nullptr) {
            this->core->c++;
        }
        return *this;
    }

SmartPointer& operator=(SmartPointer&& oth) {
        this->~SmartPointer();
        this->core = move(oth.core);
        oth.core = nullptr;
        return *this;
    }

SmartPointer& operator=(value_type* p) {
        this->~SmartPointer();
        if (p == nullptr) {
            this->core = nullptr;
        } else {
            this->core = new Core(p);
        }
        return *this;
    }

~SmartPointer() {
        if (this->core != nullptr) {
            if (this->core->c <= 1) {
                delete this->core;
            } else {
                this->core->c--;
            }
        }
    }

value_type& operator*() {
        if (this->core == nullptr || this->core->p == nullptr) {
            throw smart_pointer::exception();
        } else {
            return *(this->core->p);
        }
    }
    const value_type& operator*() const {
        if (this->core == nullptr || this->core->p == nullptr) {
            throw smart_pointer::exception();
        }
        return *(this->core->p);
    }

value_type* operator->() const {
        return this->get();
    }

value_type* get() const {
        if (this->core == nullptr) {
            return nullptr;
        } else {
            return this->core->p;
        }
    }

operator bool() const {
        if (this->core == nullptr || this->core->p == nullptr) {
            return false;
        } else {
            return true;
        }
    }

decltype(auto) getCore() const {
        return static_cast<void*>(this->core);
    }

template<typename U, typename AnotherAllocator>
    bool operator==(const SmartPointer<U, AnotherAllocator>& oth)
        const {
        return this->getCore() == oth.getCore();
    }

template<typename U, typename AnotherAllocator>
    bool operator!=(const SmartPointer<U, AnotherAllocator>& oth) const {
        return !(SmartPointer::operator==(oth));
    }

size_t count_owners() const {
        if (this->core == nullptr) {
            return 0;
        } else {
            return this->core->c;
        }
    }

private:
    class Core {
    public:
        explicit Core(value_type* x) : p(x), c(1) {}
        ~Core() {
            if (p != nullptr) {
                delete p;
            }
        }
        size_t c = 0;
        value_type* p;
    };
    Core* core;
};
};  // namespace smart_pointer

(3 761 b)

0.052s 0.012s 10