An exception "cannot dereference end map/set iterator" in polygon_arbitrary_formation.hpp

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp
Domain
computer-graphics

Research direction

Inspect polygon_arbitrary_formation.hpp at lines 1687 and 1754, starting with the while loop and the iterator used after it. Reproduce Polygon Set Data Object get(output) on a complex polygon and trace the iterator state. Done means the operation no longer dereferences an end map/set iterator; no test file is mentioned in the issue.

Written by the indexing model from the issue text.

Description

While using Polygon Set Data Object void get(output_container& output) to get fractures of a complex polygon, line#1754 in polygon_arbitrary_formation.hpp caused the exception. The exception happened since line#1687 in polygon_arbitrary_formation.hpp. In line#1687, it increases value of "iter" to get out "while" loop . After the while loop, value of "iter" is null which is used in line#1754 to cause the exception happened.

Dominant language
C++
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Forks
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