CODEWITHSUNDEEP
c++
user3319320
user3319320

Reputation: 259

C++ Syntax Split ColorA into floats?

I remember being able to do something like this but I cant remember how. I want to extract the floats from a ColorA data type, what is the shortest syntax to do this in C++?

ColorA(r,g,b,a) = material.getAmbient();

Upvotes: 0

Views: 47

Answers (1)

user3920237
user3920237

Reputation:

You can use std::tie here if you're willing to provide a to_tuple function. A tuple conversion function has problems with a nastier workaround so this solution is straight forward.

struct ColorA
{
    float r, g, b, a;
    auto to_tuple() const
    {
        return std::make_tuple(r, g, b, a);
    }
};

int main()
{
    float r, g, b, a;
    ColorA color;
    std::tie(r, g, b, a) = color.to_tuple();

    return 0;
}

Upvotes: 1

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