Question

// Returns an int representing an RGB pixel consisting
// of the given alpha, red, green and blue intensity
// values. (All intensity values must be between
// 0 and 255, inclusive.
pixel make_pixel(int alpha, int red, int green, int blue)
{

}

Answer 1

What language is this?

Answer 2

Since this function should return a `pixel', could you also give the definition of `pixel'?

Answer 3

Well, the comments say it returns an int, but the code says it returns a pixel. So something is wrong right away. I'm going to answer in C# since that's the language I use most. I will also assume you wish to use RGBA colour coding.

int make_pixel(int alpha, int red, int green, int blue)
{
int t;
t = alpha;
t += blue << 8;
t += green << 16;
t += red << 24;
return t;
}

This is off the top of my head though so please double check it.

Answer 4

ok thanks!