diff options
4 files changed, 374 insertions, 0 deletions
| -rw-r--r-- | Sem. 10/MyString/MyString.cpp | 138 | ||||
| -rw-r--r-- | Sem. 10/MyString/MyString.h | 41 | ||||
| -rw-r--r-- | Sem. 10/Queue.hpp | 150 | ||||
| -rw-r--r-- | Sem. 10/Source2.cpp | 45 |
diff --git a/Sem. 10/MyString/MyString.cpp b/Sem. 10/MyString/MyString.cpp new file mode 100644 index 0000000..1bceef5 --- /dev/null +++ b/Sem. 10/MyString/MyString.cpp @@ -0,0 +1,138 @@ +#include "MyString.h"
+#include <cstring>
+#include <iostream>
+
+void MyString::copyFrom(const MyString& other)
+{
+ str = new char[strlen(other.str) + 1];
+ strcpy(str, other.str);
+ size = other.size;
+}
+void MyString::free()
+{
+ delete[] str;
+}
+
+MyString::MyString()
+{
+ str = new char[1];
+ str[0] = '\0';
+ size = 0;
+}
+
+MyString::MyString(const char* data)
+{
+ size = strlen(data);
+ str = new char[size + 1];
+ strcpy(str, data);
+}
+
+MyString::MyString(const MyString& other)
+{
+ copyFrom(other);
+}
+MyString& MyString::operator=(const MyString& other)
+{
+ std::cout << "op=" << std::endl;
+
+ if (this != &other)
+ {
+ free();
+ copyFrom(other);
+ }
+ return *this;
+}
+MyString::~MyString()
+{
+ free();
+}
+
+
+size_t MyString::getSize() const
+{
+ return size;
+}
+void MyString::concat(const MyString& other)
+{
+ char* temp = new char[getSize() + other.getSize() + 1];
+ strcpy(temp, str);
+ strcat(temp, other.str);
+
+ delete[] str;
+ str = temp;
+ size = size + other.getSize();
+}
+
+const char* MyString::c_str() const
+{
+ return str;
+}
+
+MyString& MyString::operator+=(const MyString& other)
+{
+ concat(other);
+ return *this;
+}
+
+MyString operator+(const MyString& lhs, const MyString& rhs)
+{
+ MyString copyOfLeft(lhs);
+ copyOfLeft += rhs;
+ return copyOfLeft;
+}
+
+std::ostream& operator<<(std::ostream& stream, const MyString& str)
+{
+ stream << str.str;
+ return stream;
+}
+
+std::istream& operator>>(std::istream& stream, MyString& str)
+{
+ delete[] str.str;
+ char buff[1024];
+ stream >> buff;
+
+ str.size = strlen(buff);
+ str.str = new char[str.size + 1];
+ strcpy(str.str, buff);
+
+ return stream;
+}
+
+bool operator==(const MyString& lhs, const MyString& rhs)
+{
+ return strcmp(lhs.c_str(), rhs.c_str()) == 0;
+}
+bool operator<=(const MyString& lhs, const MyString& rhs)
+{
+ return strcmp(lhs.c_str(), rhs.c_str()) <= 0;
+
+}
+bool operator<(const MyString& lhs, const MyString& rhs)
+{
+ return strcmp(lhs.c_str(), rhs.c_str()) < 0;
+
+}
+
+MyString::MyString(MyString&& otherString)
+{
+ str = otherString.str;
+ size = otherString.size;
+ otherString.str = nullptr;
+ std::cout << "move constr" << std::endl;
+}
+
+MyString& MyString::operator=(MyString&& otherString)
+{
+ std::cout << "move op=" << std::endl;
+
+ if (this != &otherString)
+ {
+ free();
+ str = otherString.str;
+ otherString.str = nullptr;
+ size = otherString.size;
+ }
+ return *this;
+}
\ No newline at end of file diff --git a/Sem. 10/MyString/MyString.h b/Sem. 10/MyString/MyString.h new file mode 100644 index 0000000..9e54287 --- /dev/null +++ b/Sem. 10/MyString/MyString.h @@ -0,0 +1,41 @@ +#pragma once
+
+#include <fstream>
+class MyString
+{
+ char* str;
+ size_t size;
+
+ void copyFrom(const MyString& other);
+ void free();
+
+public:
+ MyString();
+ MyString(const char*);
+
+ MyString(const MyString&);
+
+ MyString(MyString&&); //move constructor that accepts rvalue;
+
+ MyString& operator=(const MyString& other);
+ MyString& operator=(MyString&& other); //move op= that accepts rvalue;
+
+ ~MyString();
+
+ size_t getSize() const;
+ void concat(const MyString& other);
+
+ const char* c_str() const;
+
+ MyString& operator+=(const MyString& other);
+
+ friend std::ostream& operator<<(std::ostream& stream, const MyString& str);
+ friend std::istream& operator>>(std::istream& stream, MyString& str);
+
+};
+
+MyString operator+(const MyString& lhs, const MyString& rhs);
+
+bool operator==(const MyString& lhs, const MyString& rhs);
+bool operator<=(const MyString& lhs, const MyString& rhs);
+bool operator<(const MyString& lhs, const MyString& rhs);
diff --git a/Sem. 10/Queue.hpp b/Sem. 10/Queue.hpp new file mode 100644 index 0000000..f9321cc --- /dev/null +++ b/Sem. 10/Queue.hpp @@ -0,0 +1,150 @@ +#include <iostream>
+#include <exception>
+template <typename T>
+class MyQueue
+{
+ T* data;
+ size_t capacity;
+ size_t size;
+
+ size_t get;
+ size_t put;
+
+ void resize();
+
+ void copyFrom(const MyQueue<T>& other);
+ void free();
+public:
+ MyQueue();
+
+ MyQueue(const MyQueue<T>& other);
+ MyQueue<T>& operator=(const MyQueue<T>& other);
+
+ void push(const T& obj);
+ void push(T&& obj); //позволява и местене
+ void pop();
+
+ const T& peek() const;
+ bool isEmpty() const;
+
+ ~MyQueue();
+
+};
+
+template <typename T>
+MyQueue<T>::MyQueue()
+{
+ capacity = 4;
+ data = new T[capacity];
+ size = 0;
+ get = put = 0;
+}
+
+template <typename T>
+void MyQueue<T>::push(const T& obj)
+{
+ if (size == capacity)
+ resize();
+
+ data[put] = obj; //operator=
+ (++put) %= capacity;
+ size++;
+}
+
+template <typename T>
+void MyQueue<T>::push(T&& obj)
+{
+ if (size == capacity)
+ resize();
+
+ data[put] = obj; //move operator =
+ (++put) %= capacity;
+ size++;
+}
+
+template <typename T>
+bool MyQueue<T>::isEmpty() const
+{
+ return size == 0;
+}
+
+
+template <typename T>
+const T& MyQueue<T>::peek() const
+{
+ if (isEmpty())
+ throw std::logic_error("Empty queue!");
+
+ return data[get];
+}
+
+template <typename T>
+void MyQueue<T>::pop()
+{
+ if (isEmpty())
+ throw std::logic_error("Empty queue!");
+ (++get) %= capacity;
+ size--;
+}
+
+template <typename T>
+void MyQueue<T>::resize()
+{
+ T* resizedData = new T[capacity * 2];
+ for (size_t i = 0; i < size; i++)
+ {
+ resizedData[i] = data[get];
+ (++get) %= capacity;
+ }
+ capacity *= 2;
+ delete[] data;
+ data = resizedData;
+ get = 0;
+ put = size;
+}
+
+
+template <typename T>
+void MyQueue<T>::copyFrom(const MyQueue<T>& other)
+{
+ data = new T[other.capacity];
+ for (int i = 0; i < other.capacity; i++)
+ data[i] = other.data[i];
+
+ get = other.get;
+ put = other.put;
+
+ size = other.size;
+ capacity = other.capacity;
+
+}
+
+template <typename T>
+void MyQueue<T>::free()
+{
+ delete[] data;
+}
+
+template <typename T>
+MyQueue<T>::MyQueue(const MyQueue<T>& other)
+{
+ copyFrom(other);
+
+}
+
+template <typename T>
+MyQueue<T>& MyQueue<T>::operator=(const MyQueue<T>& other)
+{
+ if (this != &other)
+ {
+ free();
+ copyFrom(other);
+ }
+ return *this;
+}
+
+template <typename T>
+MyQueue<T>::~MyQueue()
+{
+ free();
+}
\ No newline at end of file diff --git a/Sem. 10/Source2.cpp b/Sem. 10/Source2.cpp new file mode 100644 index 0000000..7e11203 --- /dev/null +++ b/Sem. 10/Source2.cpp @@ -0,0 +1,45 @@ +#include <iostream>
+#include "MyString/MyString.h"
+#include "Queue.hpp"
+int main()
+{
+ {
+ MyQueue<size_t> q;
+
+ q.push(3);
+ q.push(10);
+
+ std::cout << q.peek() << std::endl;
+ q.pop();
+
+ std::cout << q.peek() << std::endl;
+ q.pop();
+
+ }
+ {
+ MyQueue<MyString> q;
+
+ MyString name = "Ivan";
+
+ q.push(std::move(name)); //so it could call push(MyString&&)
+
+ MyString name2 = "Petur";
+ q.push(name2); //push(const MyString&)
+
+ q.push("Alex");//push(MyString&&)
+
+ std::cout << q.peek() << std::endl;
+ q.pop();
+
+ std::cout << q.peek() << std::endl;
+ q.pop();
+
+ std::cout << q.peek() << std::endl;
+ q.pop();
+ }
+}
+//copy constr
+// destr
+//destr
+//destr
+//destr
\ No newline at end of file |
