Re: [Lib2geom-devel] https://bugs.launchpad.net/inkscape/+bug/1482806

[Krzysztof K. <twe...@gm...>]

Instead of changing the unary minus operator, the default constructor
for SBasis should be changed so that it creates an SBasis that is
identically zero (i.e. contains only one Linear(0, 0)). Null values
should not be representable in the SBasis object, and there should
assertions everywhere verifying that there is at least one element; no
member functions should ever remove the last Linear.

Regards, Krzysztof

2015-08-13 2:11 GMT+02:00 Alvin Penner <pe...@va...>:
> Hi,
>         this is a request for comment on a proposed fix for Bug 1482806. The
> bug is apparently caused by returning a null value when attempting to
> take the unary negative of an sbasis which is zero. The proposed code
> returns the original sbasis instead. Any comments on whether this is
> acceptable? The code is fairly deeply embedded, so it may have
> implications elsewhere.
>
> Alvin Penner
>
>
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