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Operator Overloading?

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Hey, im quiet confused with this, basically i understand it is to allow say two user definend types to have workable operators, ie Having a class called Day. And creating an instance ie Day Today; Day Tomorow; Operator overloading would allow Today + Tomorow; is this correct? From what i understand i would have to do the defenition of the operator overloading in the class defenition. Day::operator++{ //increment member variables or whatever in here; return *this; } if that above is correct, i see it would work with Tody++; But how and what would i need to enable Today+Tomorow ?

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I really can't understand you very well, but heres an example of operator overloading:


class CVector3
{
friend CVector3 operator+(CVector3 &rhs);

public:

...

}

...

CVector3 CVector3::operator+(CVector3 &rhs)
{
return CVector3(x + rhs.x, y + rhs.y, z + rhs.z);
}

...

int main()
{
CVector3 vec1(1.0, 1.0, 1.0);
CVector3 vec2(1.0, 1.0, 1.0);

CVector3 vec3 = vec1 + vec2;

return 0;
}


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