Operator overloading in OOP

[Qasimtn]

In Operator Overloading just suppose i am talking about operator(+),
if i have a class Bluejem and i want to add three object (Cascaded Operation)

class Bluejem
{
........
//member function
Bluejem operator+(Bluejem& obj );
.......
};

void main()
{
        blue_return=blue_1+blue_2+blue_3;

.........
.........
}

i am confused in knowing that which two objects will add first
blue_2+blue_3
or
blue_1+blue_2
help me!
on saturday i have to submit my lab work on operator overloading.... .

[horace1]

In Operator Overloading just suppose i am talking about operator(+),
if i have a class Bluejem and i want to add three object (Cascaded Operation)

class Bluejem
{
........
//member function
Bluejem operator+(Bluejem& obj );
.......
};

void main()
{
        blue_return=blue_1+blue_2+blue_3;

.........
.........
}

i am confused in knowing that which two objects will add first
blue_2+blue_3
or
blue_1+blue_2
help me!
on saturday i have to submit my lab work on operator overloading.... .

Associativity determines how operators of the same precedence are grouped. The associativity of + is left to right, so in
blue_return=blu e_1+blue_2+blue _3;
the subexpression blue_1+blue_2 would be evaluated first, i.e.
blue_return=(bl ue_1+blue_2)+bl ue_3;