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bug#25890: `color-values` gives wrong value


From: Eli Zaretskii
Subject: bug#25890: `color-values` gives wrong value
Date: Wed, 01 Mar 2017 05:43:36 +0200

> From: Michael Heerdegen <address@hidden>
> Cc: Rasmus <address@hidden>,  address@hidden
> Date: Wed, 01 Mar 2017 00:42:02 +0100
> 
> With that patch, for me in the recipe of bug #24273, it makes a
> difference; now
> 
> (color-name-to-rgb "#ffffff")
> ==>
> (0.9961089494163424 0.9961089494163424 0.9961089494163424)
> 
> and
> 
> (color-name-to-rgb "white")
> ==>
> (1.0 1.0 1.0)

That's what should happen, yes.

> For the recipe of this bug report, the values are the same as without
> the patch.
> 
> I guess this is what you expected.

Yes, expected.  color-values were not affected by the change, it's
just that color.el is now consistent with what color-values returns.

> But is it ok that "#ffffff" is not equivalent to "white"?

Yes.  There's no other way, really, on systems where "white" has 3
16-bit components with all bits set, when color-values is called.





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