Interested to Buy Any Domain ? << Click Here >> for more details...
what is smart pointer & use of the smart pointer ???
- 2 Answers
- 7789 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / satya
Smart pointers are objects which store pointers to
dynamically allocated (heap) objects. They behave much like
built-in C++ pointers except that they automatically delete
the object pointed to at the appropriate time. Smart
pointers are particularly useful in the face of exceptions
as they ensure proper destruction of dynamically allocated
objects. They can also be used to keep track of dynamically
allocated objects shared by multiple owners.
| Is This Answer Correct ? | 16 Yes | 0 No |
Answer / swarna sekhar dhar
Smart pointers have been the subject of hecatombs of code
written and rivers of ink consumed by programmers and
writers around the world. Perhaps the most popular,
intricate, and powerful C++ idiom, smart pointers are
interesting in that they combine many syntactic and semantic
issues. This chapter discusses smart pointers, from their
simplest aspects to their most complex ones and from the
most obvious errors in implementing them to the subtlest
ones—some of which also happen to be the most gruesome.
In brief, smart pointers are C++ objects that simulate
simple pointers by implementing operator-> and the unary
operator*. In addition to sporting pointer syntax and
semantics, smart pointers often perform useful tasks—such as
memory management or locking—under the covers, thus freeing
the application from carefully managing the lifetime of
pointed-to objects
| Is This Answer Correct ? | 2 Yes | 1 No |
When is dynamic checking necessary?
Generally variables are stored in heap memory. When he variables are created in stack?
What are containers in c++?
What is the basic structure of a c++ program?
Explain stack unwinding.
How to give an alternate name to a namespace?
What is the difference between "overloading" and "overridding"?
Are there any special rules about inlining?
Write a C++ program that asks the user to choose a number between 1 and 1000. Then, your program should be able to guess the number by asking the user no more than 10 yes/no questions. Use a while loop in your program
Design a program to input a date from user in the form day/month/year (e.g. 2/6/2000) and report whether it’s a valid date or not. The program should take account of leap years. You will need to know that a leap year is a year that is exactly divisible by 4, except that century years are only leap years if they are divisible by 400.
What should main() return in c and c++?
What methods can be overridden in java?
STL 
