Why & Sign Is Used In Copy Constructor?

1.	Why & Sign Is Used In Copy Constructor?
Answer» To avoid local copy of object reference (&) is used in copy constructor. Moreover if the & is omitted then copy constructor GOES in infinite loop. eg. if class name is SAMPLE. Copy constructor WITHOUT & Sample :: Sample (Sample s) { //Code goes here } and we create object as FOLLOWS. ; Sample s; Sample S1(s); In this scenario program will go in infinite loop. To avoid local copy of object reference (&) is used in copy constructor. Moreover if the & is omitted then copy constructor goes in infinite loop. eg. if class name is Sample. Copy constructor without & Sample :: Sample (Sample s) { //Code goes here } and we create object as follows. ; Sample s; Sample s1(s); In this scenario program will go in infinite loop.

Answer»

To avoid local copy of object reference (&) is used in copy constructor.

Moreover if the & is omitted then copy constructor GOES in infinite loop.

eg. if class name is SAMPLE.

Copy constructor WITHOUT &

Sample :: Sample (Sample s)

{

//Code goes here

}

and we create object as FOLLOWS. ;

Sample s;

Sample S1(s);

In this scenario program will go in infinite loop.

To avoid local copy of object reference (&) is used in copy constructor.

Moreover if the & is omitted then copy constructor goes in infinite loop.

eg. if class name is Sample.

Copy constructor without &

Sample :: Sample (Sample s)

{

//Code goes here

}

and we create object as follows. ;

Sample s;

Sample s1(s);

In this scenario program will go in infinite loop.

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