Write Your Own String Class:

class OwnString
{

private :

char *string1 = NULL;
int size;

public:
OwnString(void)
{
string1 = NULL;
}

OwnString(const char * strData)
{
size = strlen(strData);
string1  = new char[size + 1];
int i = 0;
while (*strData)
{
string1[i] = *strData;

strData++;
i++;
}
}
OwnString & operator=(OwnString & obj)
{
if (this != &obj)
{
delete[]string1;
size = obj.size;
string1 = new char[size+1];
int i = 0;
while (i<size+1)
{
string1[i] = obj.string1[i];

//strData++;
i++;
}
}
return *this;
}

OwnString (const OwnString & obj)
{
if (this != &obj)
{
delete[]string1;
size = obj.size;
string1 = new char[size + 1];
int i = 0;
while (i < size + 1)
{
string1[i] = obj.string1[i];

//strData++;
i++;
}
}
}

void print()
{
for (int i = 0; i < size; i++)
{
cout << string1[i];
}

cout << endl;
}

~OwnString()
{
delete string1;
}
};

Comments

Post a Comment

Popular posts from this blog

Dynamic Memory allocation in C++ for 1d, 2d and 3d array

#include <iostream> #define N 10 // Dynamically Allocate Memory for 1D Array in C++ int main() { // dynamically allocate memory of size N int* A = new int[N]; // assign values to allocated memory for (int i = 0; i < N; i++) A[i] = i + 1; // print the 1D array for (int i = 0; i < N; i++) std::cout << A[i] << " "; // or *(A + i) // deallocate memory delete[] A; return 0; } //2-Dimentional Array. // using single pointer; #include <iostream> // M x N matrix #define M 4 #define N 5 // Dynamically Allocate Memory for 2D Array in C++ int main() { // dynamically allocate memory of size M*N int* A = new int[M * N]; // assign values to allocated memory for (int i = 0; i < M; i++) for (int j = 0; j < N; j++) *(A + i*N + j) = rand() % 100; // print the 2D array for (int i = 0; i < M; i++) { for (int j = 0; j < N; j++) std::cout << *(A + i*N + j) << "
Read more

Printing the odd and even no using Pthread

#include<iostream> #include <pthread.h> using namespace std; void *even(void * size) {             int x = reinterpret_cast<int> (size);         cout << "even no" <<endl;     for(int i = 0; i<x; i++)     {         if(i%2 == 0){                         cout << i << endl;         }             }     cout <<endl;     cout <<"even thread is terminited ";     cout <<endl; } void *odd(void *size ) {     pthread_t tid2;         int x = reinterpret_cast<int> (size);         cout << "odd no" <<endl ;     for(int i = 0; i<x; i++)     {         if(i%2 != 0){                         cout << i <<endl ;         }             }             pthread_create(&tid2, NULL, even, (void*)x);         cout <<endl;     pthread_join(tid2, NULL);         cout <<"odd thread is terminited ";     cout <<endl; } int main() {     int size;         cout <<
Read more