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| author |  Eric Sunshine <sunshine@sunshineco.com> | 2013-07-23 10:28:06 -0400 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2013-07-23 12:09:14 -0700 |
| commit | f8395edc6f5c59a92adcf42ea20a01872ec22700 (patch) | |
| tree | a7fda097a9751a69ee566ef3a25db1cf0c20bc25 /git-gui/lib/blame.tcl | |
| parent | t4211: demonstrate crash when first -L encountered is empty range (diff) | |
| download | tgif-f8395edc6f5c59a92adcf42ea20a01872ec22700.tar.xz | |
range-set: satisfy non-empty ranges invariant
range-set invariants are: ranges must be (1) non-empty, (2) disjoint,
(3) sorted in ascending order.
During processing, various range-set utility functions break the
invariants (for instance, by adding empty ranges), with the
expectation that a finalizing sort_and_merge_range_set() will restore
sanity.
sort_and_merge_range_set(), however, neglects to fold out empty
ranges, thus it fails to satisfy the non-empty constraint. Subsequent
range-set functions crash or throw an assertion failure upon
encountering such an anomaly. Rectify the situation by having
sort_and_merge_range_set() fold out empty ranges.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-gui/lib/blame.tcl')
0 files changed, 0 insertions, 0 deletions