Answer / nk

There is nothing like virtual constructors but we can have
virtual destructors so that the destructor of the correct
object is called.
Ex.

Base *bptr = new derived()

delete bptr; then the destructor of the derived objetc is
called when the base destructor is marked as virtual.

else destructore of base class is called and may lead to
memory leak if we have allocated any new memory.

Answer / debasish

there is no virtual constructor..coz..virtual thing is in
run time n constructor ic compile time thing.

Answer / syed abdul gaffur.

CONSTRUCTOR:

Constructors cannot be virtual. Declaring a constructor as a virtual function is a syntax error.

DISTRUCTOR :

If an object (with a non-virtual destructor) is destroyed explicitly by applying the delete operator to a base-class pointer to the object, the base-class destructor function (matching the pointer type) is called on the object

Answer / khadeer.k

virtual constructors are used when we need to avoid the
copy same. desructor frees the memory with a ~(tilde) symbol

Round up a Decimal number in c++.. example Note = 3.5 is as 4 3.3 is as 3

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