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Zero samples give undefined behaviour on tree iteration #515

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jeromekelleher opened this issue Jun 13, 2018 · 0 comments
Closed

Zero samples give undefined behaviour on tree iteration #515

jeromekelleher opened this issue Jun 13, 2018 · 0 comments
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bug
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Release 0.6.0

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@jeromekelleher
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If a tree sequence is built that has zero samples the root tracking is not working correctly and leads to accessing arbitrary memory and possibly segfaulting.

Thanks to @awohns for finding the issue.
@jeromekelleher jeromekelleher added this to the Release 0.6.0 milestone Jun 13, 2018
jeromekelleher added a commit to mcveanlab/msprime that referenced this issue Jun 13, 2018
@jeromekelleher
Fixed bug in trees with zero roots.
32079d5 
Closes tskit-dev#515.
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