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Overloading binary operator using friend function - C++ [1/1]

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Overloading binary operator using friend function - C++
Level: Intermediate Networking, Programming and Graphics Tutorials Networking, Programming and Graphics Tutorials 
Overloading binary operator using friend function - C++
Date: 2006-Dec-08
Overloading binary operator using friend function - C++
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Overloading binary operator using friend function - C++
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Overloading binary operator using friend function - C++
Author: Alex Plumpton

In the example using class adds, friend function can be used in the place of member function to overload the binary operator +. The difference is that the friend function requires two arguments while the member function requires only one. In the example using class adds, the member function declaration can be replaced by the friend function declaration as shown. The function definition has to be replaced as shown.

friend adds operator +(complex a1, complex a2);
Parts operator +(adds a1, adds a2)
{
return add((a1.m+a2.m),(al.n+p2.n));
}
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