Object_oriented_programming/Lab_2/myString.cpp

#define _CRT_SECURE_NO_WARNINGS
#include <string>
#include "myString.h"
using namespace std;

// Îïðåäåëåíèå êîíñòðóêòîðà.
MyString::MyString(const char* Str)
{
	m_pStr = new char[strlen(Str) + 1];
	strcpy_s(m_pStr, strlen(Str) + 1, Str);
}

//ìåòîä , êîòîðûé îáåñïå÷èò äîñòóï ê õðàíÿùåéñÿ ñòðîêå
const char* MyString::GetString() const
{
	return m_pStr;
}

//êîíñòðóêòîð êîïèðîâàíèÿ
MyString::MyString(const MyString& Other)
{
	m_pStr = new char[strlen(Other.m_pStr) + 1];
	strcpy_s(m_pStr, strlen(Other.m_pStr) + 1, Other.m_pStr);
}

//ïåðåìåùàþùèé êîíñòðóêòîð êîïèðîâàíèÿ
MyString::MyString(MyString&& Other)
{
	m_pStr = Other.m_pStr; //ïðîñòî çàáèðàåì äàííûå (ñèàìñêèå)
	Other.m_pStr = nullptr;//ãîâîðèì, ÷òî ó äðóãîãî íåò (òåïåðü âñå îòëè÷íî)
}

// Îïðåäåëåíèå äåñòðóêòîðà.
MyString::~MyString()
{
	//to_do m_pStr = new char [strlen(Str) + 1];
	delete[] m_pStr;
	m_pStr = nullptr;
}

//ìåòîä, êîòîðûé áóäåò çàìåíÿòü ñòðîêó íà íîâóþ
void MyString::SetNewString(const char* Str)
{
	//if (strlen(m_pStr) >= strlen(Str)) {}; íóæíà ëè ïðîâåðêà???
	if (strcmp(m_pStr, Str))
	{
		if (strlen(m_pStr) != strlen(Str)) 
		{
			delete[] m_pStr;
			m_pStr = new char[strlen(Str) + 1];
		};
		
		strcpy_s(m_pStr, strlen(Str) + 1, Str);
	}	
}

MyString concatenation(const char* Str, ...)
{	
	size_t size = 1;

	for (const char** p = &Str; *(p) != nullptr; p++)
	{
		size +=strlen(*p);
	}
	
	char* tmp_Str = new char [size] {};

	for (const char** p = &Str; *(p) != nullptr; p++)
	{
		tmp_Str = strcat(tmp_Str, *p);		
	}
	
	MyString tmp (tmp_Str);
	delete[]tmp_Str;//áåç óòå÷êè ïàìÿòè

	return tmp;//ïåðåìåùàþùèé êîíñòðóêòîð
}