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Re: Index format v5

From
Junio C Hamano <gitster@pobox.com>
Date
May 3, 2012, 20:32 UTC
Message-ID
<7vr4v1dmzc.fsf@alter.siamese.dyndns.org>
In-Reply-To
<87k40tgix2.fsf@thomas.inf.ethz.ch>
Thomas Rast <trast@student.ethz.ch> writes:
Show 6 quoted lines
> Thomas Rast <trast@student.ethz.ch> writes:
>
>> Comparisons for equality never have false negatives with any hash
>> function.  Collisions are false positives.
>
> Bah, shouldn't hit "send" so fast.  There goes my karma :-D

Heh, don't take "karma" thing too seriously. I was merely trying to be funny and I seem to have failed the attempt.

It depends on what question you are asking, and against "Did this change?" question, saying "No, it didn't" when the right answer is "Yes, it did" is a false negative. You are asking for a false negative if you substitute byte-for-byte comparison with comparison of hashed results of the values that needs to be compared.

But as I said, mtime is the primary thing that protects us, so it may not be such a big deal.

Previous: Thomas RastNext: Thomas Gummerer
Message 12 of 49 in “Index format v5”
  1. Thomas GummererMay 3, 2012
  2. Thomas RastMay 3, 2012
  3. Junio C HamanoMay 3, 2012
  4. Michael HaggertyMay 4, 2012
  5. Robin RosenbergMay 7, 2012
  6. Ronan KeryellMay 3, 2012
  7. Thomas GummererMay 3, 2012
  8. Junio C HamanoMay 3, 2012
  9. Thomas RastMay 3, 2012
  10. Thomas RastMay 3, 2012
  11. Thomas RastMay 3, 2012
  12. Junio C HamanoMay 3, 2012
  13. Thomas GummererMay 3, 2012
  14. Robin RosenbergMay 7, 2012
  15. solo-git@goeswhere.comMay 3, 2012
  16. Nguyen Thai Ngoc DuyMay 4, 2012
  17. Thomas GummererMay 4, 2012
  18. Philip OakleyMay 4, 2012
  19. Junio C HamanoMay 4, 2012
  20. Nguyen Thai Ngoc DuyMay 6, 2012
  21. Thomas GummererMay 7, 2012
  22. Phil HordMay 6, 2012
  23. Thomas GummererMay 7, 2012
  24. Michael HaggertyMay 7, 2012
  25. Thomas GummererMay 8, 2012
  26. Nguyen Thai Ngoc DuyMay 8, 2012
  27. Nguyen Thai Ngoc DuyMay 8, 2012
  28. Thomas GummererMay 10, 2012
  29. Nguyen Thai Ngoc DuyMay 10, 2012
  30. Michael HaggertyMay 9, 2012
  31. Thomas GummererMay 10, 2012
  32. Michael HaggertyMay 10, 2012
  33. Thomas GummererMay 11, 2012
  34. Michael HaggertyMay 13, 2012
  35. Thomas GummererMay 14, 2012
  36. Michael HaggertyMay 14, 2012
  37. Thomas RastMay 14, 2012
  38. Michael HaggertyMay 15, 2012
  39. Thomas GummererMay 15, 2012
  40. Michael HaggertyMay 15, 2012
  41. Thomas GummererMay 18, 2012
  42. Michael HaggertyMay 19, 2012
  43. Thomas GummererMay 21, 2012
  44. Michael HaggertyMay 16, 2012
  45. Thomas GummererMay 16, 2012
  46. Michael HaggertyMay 19, 2012
  47. Thomas GummererMay 21, 2012
  48. Philip OakleyMay 13, 2012
  49. Thomas GummererMay 14, 2012

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