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

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

Okay, I'll get this patched then.

2015-08-13 16:39 GMT+02:00 Alvin Penner <pe...@va...>:
> Sounds like a good idea, a somewhat similar problem occurred recently in
> https://bugs.launchpad.net/inkscape/+bug/1473317
>
> Unfortunately, I don't know how to actually do this. My C programming skills
> are limited to microprocessors that are 15 years old and still use integer
> arithmetic.
>
> Alvin
>
>
> At 08:50 AM 8/13/2015, Krzysztof Kosiński wrote:
>>
>> 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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>
>