Class X{X(){}X(X &obj){} // supose '=' operator is also overloaded for this class. I am not writing code for that }main(){X a;X b = a;X c(&a);X d;d = a;}What is the difference between a, b, c, d objects ?

Rajesh

• Feb 6th, 2007

 

X b = a; --calls copy constructor as here new object will be created.X c(a); copy constructord = a; normal assignment so = operator comes into picture.

swetha

• Feb 20th, 2007

 

x a;  -  calls default constructor

X b = a;  - calls copy constructor
X c(a);    - calls copy constructor
X d;       - calls default constructor
d = a;    -   calls overloaded = operator.

burraganesh

 Profile Answers by burraganesh 

• Dec 7th, 2008

 

For statements Xb =a and X c(a) copy constructor is invoked but with assignment d=a,operator()= is invoked.