在C ++中返回错误的类型

Question

I have a class Color that contains three float components (r, g, b).

I have to program the following function :

Color getColor(unsigned char values[], int i)

Normally I should program it like this :

Color getColor(unsigned char values[], int i){
     return Color((float) values[i]/255.0, (float) values[i+1]/255.0, (float) values[i+2]/255.0);
}

But by error I did

return values[i];

When I compiled I didn't get any compilation error and I haven't get run time error either.

Why this is possible?

Answer 1

This could be a result of non-explicit constructor of Color class accepting unsigned char as its argument.

That means you have constructor in Color class with single argument OR multiple arguments rest being default parameters.

Answer 2

检查Color类中的构造函数，并用所需的构造函数覆盖。