C++ Programming: A Practical Approach

Class Features 119

int main()

{

CuboidMetal c1("Silver",3,4,12,13,1512,10.5);

CuboidMetal c2("Gold",2,3,6,7,7103,19.3);

c2=c1;

c2.DeterminePurity();

}

Output

Assignment operator Called

Metal type is Silver

Volume is 144

Density is 10.5

Metal Silver is pure.

The copy constructor and assignment operator implementation is generated by the compiler

for a class if it is not explicitly defined in a class implementation. If the class contains a pointer

variable, it is necessary to define the copy constructor and assignment operator for that class

to avoid bitwise copying which can create a dangling pointer and that can cause a serious

runtime error.

3.13