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Why a "operator=(...)" when there is a copy ctor?
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Answer / guest
You use the assignment operator (operator = ()) whenever an
existing object is to be replaced with a different object.
The copy constructor X(const X&) is used to create a new
instance of an X-object exactly like another.
Notice the subtle difference. Assignment changes an existing
object while construction creates a new object. You can view
assignment as the application of a destructor, to flush away
the existing object, followed by a copy construction, to
make an exact copy of the assigned object.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / arun
Copy Constructor means creation of new object and after that
copy properties of some exiting object to newly created object.
Overloading assignment operator is that copy properties of
some exiting object to another exiting object of same type.
| Is This Answer Correct ? | 1 Yes | 0 No |
What do you mean by abstraction?
c++ provides classes...and classes do what we want but why then strcut are used...if we say data hiding... it is also provided by c++ in structs then why to prefer clasess
why overriding?
3. Differentiate verification and validation.
What is pure oop?
What does and I oop and sksksk mean?
what is oops
program for insertion ,deletion,sorting in double link list
What type of loop is a for loop?
why c++ is a highlevel language
3 Answers Satyam, Tech Mahindra,
What is difference between new and malloc?
namespace is working on which compiler?
STL 
