#include "MyString.h"

bool operator == (const MyString& S1, const MyString& S2)
{
	if (S1.length == S2.length)
	{
		short counter1 = S1.length;
		int mis = 0;
		int i = 0;
		while (i != counter1)
		{
			if (S1.str[i] != S2.str[i]) { mis++; }
			i++;
		}
		if (mis != 0) { return false; }
		else { return true; }
	}
	else { return false; }

}
ostream& operator <<(ostream& OS, const MyString& S)
{
	OS << S.str;
	return OS;
}

istream& operator >>(istream& IS, MyString& S)
{
	char* input = new char[100];
	IS.getline(input, 100);

	int i = 0;
	while (input[i] != '\0')
	{
		i++;
	}
	S.length = i + 1;
	delete[]S.str;
	S.str = new char[(i + 1)];
	for (int j = 0; j < (i); j++)
	{
		S.str[j] = input[j];
	}
	S.str[i] = '\0';
	delete[]input;
	return IS;
}
bool MyString::isEmpty()
{
	if (str[0] == NULL && length == 1)
	{
		return true;
	}
	else
	{
		return false;
	}
}
int find(const MyString& S1,const MyString& S2)
{
	int index = 0;
	int strsize1 = S1.length;
	int strsize2 = S2.length;
	int counter = 0;
	int checker = 0;
	for (int i = 0;checker!=strsize2 || i<strsize1;i++)
	{
		if (S2.str[checker] == S1.str[i])
		{
			checker++;
			index = i;
		}
		if (checker > 0 && S2.str[checker] == S1.str[i] && checker != (i - 1))
		{
			return -1;
		}
	}
	index =index-checker+1;
	if (checker == strsize2)
	{
		return index;
	}
	else
	{
		return -1;
	}
}