Re: [PATCH] diff: Fix rename pretty-print when suffix and prefix overlap

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On Thu, Feb 28, 2013 at 11:14 PM, Thomas Rast <trast@xxxxxxxxxxxxxxx> wrote:
> Antoine Pelisse <apelisse@xxxxxxxxx> writes:
>
>> diff --git a/diff.c b/diff.c
>> index 9038f19..e1d82c9 100644
>> --- a/diff.c
>> +++ b/diff.c
>> @@ -1177,7 +1177,16 @@ static char *pprint_rename(const char *a, const char *b)
>> -     while (a <= old && b <= new && *old == *new) {
>> +     /*
>> +      * Note:
>> +      * if pfx_length is 0, old/new will never reach a - 1 because it
>> +      * would mean the whole string is common suffix. But then, the
>> +      * whole string would also be a common prefix, and we would not
>> +      * have pfx_length equals 0.
>> +      */
>> +     while (a + pfx_length - 1 <= old &&
>> +            b + pfx_length - 1 <= new &&
>> +            *old == *new) {
>
> Umm, you still have the broken version here, and the previous patch is
> already in next.  I think you should decide for one thing ;-)

Thanks ! I had not paid enough attention to that.

> Either: consider this a reroll; Junio would have to revert the version
> already in next (which isn't _so_ bad, because next will eventually be
> rebuilt) and apply this new version.  But if you do that, you should
> squash my change that deals with the underrun issue (I'd be fine with
> that).

I would not have done that without your consent (that's why I kept the
buggy version)

> Or: consider it an incremental improvement on the series, in which case
> you should send only the tests with a new commit message.

That seems like the best solution to me. I will resend later with just
the tests and a new commit message.

Cheers,
Antoine
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