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.
write a c++ program to find the prime numbers
In this lab, please complete a given program to perform the following tasks: 1. Allocate a 10 by 5 2D byte array dynamically. The way of allocation must be consistent with pag
How can one handle a constructor that fails?
You are setting up an information system for a DVD Rental Company called Box office. The new system need to hold information about customers and DVDs rentals, payments and fines. C
C program for bubble sort: void main() { int i,j,k,a[10],n; clrscr(); printf("How many values you want to enter\n"); scanf("%d",&n); for(i=0;i { pri
program
what are 3 conditions under which the sequential search of a list is preferable to binary search?
Ravi is a newbie to the programming and while learning the programming language he came to know the following rules: · Each program must start with ''{'' and end with '
C program to demonstrate Pointer to variable: void p2a(int *); void main() { int x=10, *a,**b; int arr[5]; //poin
Define a procedure that takes three numbers as arguments and returns the sum of the squares of the two larger numbers.
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