Answer Posted / deepak mundhada

enum is a user defined data type . we have to use enum
keyword to specify it.
eg. #include<iostream.h>
class A
{ public:
enum Colour
{ colour_green=0,
colour_peach=0,
colour_white =1,
colour_yellow =2
};
//we cannot have color_green 2 times here
/*enum Colour
{ colour_green=0,
colour_peach=0,
colour_white =1,
colour_yellow =2,
colour_green=3, };
*/
//We cannot have another variable of same type as in enum
Colour
//as below
//int colour_yellow;

//We cannot have colour_white as it already declared in
enum Color
/*enum MyColour
{
colour_red, colour_white };
*/
//We cannot have another Struct or Union of same type as
below
//in the same scope
/*struct Colour
{ int red;
int green; };
*/

void compare(Colour colour1, Colour colour2);
};
void A::compare(A::Colour colour1, A::Colour colour2)
{ if(colour1 == colour2)
{ cout<<"colour1 and colour2 are same\n"; }
}}
int main()
{ A a;
a.compare(A::colour_green,A::colour_peach);
return(0);
}
Output:./a.out
colour1 and colour2 are same

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