template? mixin? template mixins? for modifying a struct setup
ag0aep6g
anonymous at example.com
Thu May 19 10:35:30 UTC 2022
On 19.05.22 12:15, Chris Katko wrote:
> given
> ```D
> struct COLOR
> {
> float r, g, b, a; // a is alpha (opposite of transparency)
> }
>
> auto red = COLOR(1,0,0,1);
> auto green = COLOR(0,1,0,1);
> auto blue = COLOR(0,0,1,1);
> auto white = COLOR(1,1,1,1);
> //etc
> ```
>
> is there a way to do:
> ```D
> auto myColor = GREY!(0.5);
> // where GREY!(0.5) becomes COLOR(0.5, 0.5, 0.5, 1.0);
> ```
What's wrong with a simple plain function?
COLOR grey(float rgb)
{
return COLOR(rgb, rgb, rgb, 1);
}
auto myColor = grey(0.5);
More information about the Digitalmars-d-learn
mailing list