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

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5787768

Пользователь

Травка Евгения Александровна

Время

16.11.2021 22:36 (27 д. 20:36) 22:40>>

Обработка

22:36 ... 22:36 (1,37 сек.)

Файл

5787768.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:8:  Do not indent within a namespace  [runtime/indentation_namespace] [4]
SmartPointer.hpp:128:  Namespace should be terminated with "// namespace smart_pointer"  [readability/namespace] [5]
Done processing SmartPointer.hpp
Total errors found: 2

[печатать | | ]

≡

#pragma once

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

namespace smart_pointer {

class exception : std::exception {
    using base_class = std::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* ptr = nullptr) :
        core((ptr == nullptr ? nullptr : new Core(ptr))) {}

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

SmartPointer(SmartPointer &&another_ptr) {
      this->core = another_ptr.core;
      another_ptr.core = nullptr;
    }

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

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

SmartPointer &operator=(value_type *ptr) {
      this->~SmartPointer();
      ptr == nullptr ? this->core = nullptr : this->core = new Core(ptr);
      return *this;
    }

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

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

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

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

value_type *get() const {
      return this->core == nullptr ? nullptr : this->core->pointer;
    }

operator bool() const {
      return !(this->core == nullptr || this->core->pointer == nullptr);
    }

template<typename U, typename AnotherAllocator>
    bool operator==(const SmartPointer<U, \
          AnotherAllocator> &another_obj) const {
      return static_cast<void *>(this->get()) == \
                  static_cast<void *>(another_obj.get());
    }

template<typename U, typename AnotherAllocator>
    bool operator!=(const SmartPointer<U, \
                                  AnotherAllocator> &another_obj) const {
      return static_cast<void *>(this->get()) != \
                          static_cast<void *>(another_obj.get());
    }

std::size_t count_owners() const {
      return this->core == nullptr ? 0 : this->core->count_of_refs;
    }

private:
    class Core {
     public:
      explicit Core(value_type* ptr) : pointer(ptr), count_of_refs(1) {}
      ~Core() {
          delete pointer;
      }
      value_type* pointer;
      size_t count_of_refs;
    };
    Core *core;
  };
}

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