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.
pls give me answer 01110-00110 in 2''s comlpiment in detail
Presently we are using several spreadsheets to give weekly activity and income reports. Much of the information is being frequently re-keyed into several spreadsheets - we are look
program to find if a no . is prime or not
find area uder the curve y=f(x) between x=a and x=b #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; in
# include stdio.h> # include conio.h> # include string.h> void main() { int i=0,j=0; char a[100],temp; clrscr();
Create a user-defined data structure (struct) called Node that represents a node within a linked list where the "data" stored in each node is a pointer to a Car object. a) Wr
need a copy constructor program
color representation 0,1,2,3,4,5,6,7...
what is dynamic memory?
the problem description. The order of the C Program should be as follows: Variables and constants Use #define statements to define the constants. Use arr
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