Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A: A smart pointer is a C++ class which mimics a regular pointer in syntax and some semantics, however it does more. Since smart pointers to distinct types of objects tend to have a lot of code in common, approximately all good-quality smart pointers in existence are templated trhough the pointee type, as you can notice in the following code:
template
class SmartPtr
{
public:
explicit SmartPtr(T* pointee) : pointee_(pointee); SmartPtr& operator=(const SmartPtr& other);
~SmartPtr();
T& operator*() const
...
return *pointee_;
}
T* operator->() const
return pointee_;
private:
T* pointee_;
};
SmartPtr aggregates a particular pointer to T in its member variable pointee_. Most smart pointers do this. In some of the cases, a smart pointer may aggregate some handles to data and compute the pointer on the fly.
The two operators give SmartPtr pointer-like semantics and syntax. i.e., you can write
class Widget
void Fun();
SmartPtr sp(new Widget);
sp->Fun(); (*sp).Fun();
Sideways from the definition of sp, nothing reveals it since not being a pointer. It is the mantra of smart pointers: You can replace pointer definitions along with smart pointer definitions without incurring major changes to your application's code. Thus you get extra goodies along with ease. Minimizing code changes is extremely appealing and essential for getting large applications to employ smart pointers. However, smart pointers are not a free lunch.
I have to make a program that allow the user input 10 numbers between 10 and 100 and if the number input is the same than the last number, should appear an error message. I have th
3. Write a program to encrypt and decrypt strings of characters using the following ciphers: a) Caesar cipher b) Vigenere cipher c) Matrix transposition cipher Your program shoul
A: The simplest way is to use a stringstream: #include #include #include using namespace std; string itos(int i) // convert int to string { stringstream s;
Write a program to create a binary file and store the following data "hello", 0x0030,'1', 1.234 Using visual studio examine the binary file and note how the day is stored Answe
#include #include #include using namespace std; #define MAX 5 #define INF (1 #define DEBUG if(0) #define pii pair #define pb(x) push_back(x) class
For Loop with inner loop
write a c++ program for minimum shelf downloads
how to write the code for operation research
Find out the largest torque: A flat belt is taken in use to transmit torque from pulley A to pulley B as shown in figure given below. The radius of each pulley is 50mm and co
Objective of this Program: (a) To learn more about modularization of a program into independent modules, (b) To use arrays in a program, (c) To get some experience with us
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd