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Author Topic: No mathematical operator overloads?  (Read 4577 times)

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devhobby

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No mathematical operator overloads?
« on: December 23, 2017, 06:55:25 pm »
I find the necessity to multiply, divide, add and subtract a vector with a scalar number

Code: [Select]
spriteName.setPosition(Vector2f(myX,myY)/2);

When I try the following code, I get compilation error

Quote
binary '/': no operator found which takes a left-hand operand of type 'sf::Vector2f' (or there is no acceptable conversion)   

So I had to manually make my own (free-function) overload...

I checked on GitHub and there is actually an overload

Line 130 of this github page

Code: [Select]
template <typename T>
inline Vector2<T> operator /(const Vector2<T>& left, T right)
{
    return Vector2<T>(left.x / right, left.y / right);
}

But apparently it doesn't work



eXpl0it3r

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Re: No mathematical operator overloads?
« Reply #1 on: December 23, 2017, 08:44:06 pm »
It works, but you need to use matching types.

Vector2f(myX,myY) / 2
       ^            ^
     float         int

Vector2f(myX,myY) / 2.f
       ^             ^
     float         float

And you also need to make sure that the SFML version you use already comes with this change as some overloads weren't part of older SFML 2.x versions.
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devhobby

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Re: No mathematical operator overloads?
« Reply #2 on: December 23, 2017, 09:07:54 pm »
Thanks, I now have the latest version