On Thu, Nov 20, 2014 at 11:44:26AM -0800, Junio C Hamano wrote:
> > @@ -32,10 +32,13 @@ struct color {
> > COLOR_UNSPECIFIED = 0,
> > COLOR_NORMAL,
> > COLOR_ANSI, /* basic 0-7 ANSI colors */
> > - COLOR_256
> > + COLOR_256,
> > + COLOR_RGB
> > } state;
> > /* The numeric value for ANSI and 256-color modes */
> > unsigned char value;
> > + /* 24-bit RGB color values */
> > + unsigned char red, green, blue;
>
> Do value and rgb have to be both valid at the same time, or is this
> "we are not wasting a byte by not using a union because it will be
> in the padding of the outer struct anyway"?
The latter. I started with a union, and then realized that COLOR_ANSI
and COLOR_256 shared the value, so the union was not saving space and
just getting in the way (mostly because I had to think of useful names
for each of the members).
I'd be happy to do it as a union if you think that makes it clearer.
Also, the name "state" should perhaps be "type". It originally started
as "unspecified or an actual value", which is a state, but as I worked,
it grew into something more.
-Peff
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