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Fixes (viblo-aidev) - #5

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viblo merged 4 commits into
viblo:masterfrom
viblo-aidev:master
Mar 23, 2026
Merged

Fixes (viblo-aidev)#5
viblo merged 4 commits into
viblo:masterfrom
viblo-aidev:master

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@viblo viblo commented Mar 15, 2026

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viblo added 4 commits March 15, 2026 23:50
* Add portable CMake test setup

* Keep demo builds in CI

---------

Co-authored-by: Victor Blomqvist <>
…terative (#1)

* Fix stack overflow in cpBBTree by converting recursive functions to iterative

Convert all 6 recursive tree traversal functions in cpBBTree.c to
iterative implementations using explicit stack arrays, preventing
stack overflow when many shapes are added to a space.

- SubtreeInsert: while loop with ancestor path tracking
- SubtreeQuery: explicit LIFO stack
- SubtreeSegmentQuery: explicit LIFO stack with pruning
- SubtreeRecycle: explicit LIFO stack
- MarkLeafQuery: explicit LIFO stack
- MarkSubtree: explicit LIFO stack

All functions assert if tree depth exceeds CP_BBTREE_MAX_DEPTH (256),
giving a clear error instead of a silent crash.

* Use dynamically growing stack for iterative tree traversal

Replace fixed-size stack[256] with a growable stack that starts with 64
entries on the C stack and switches to heap allocation when needed. This
removes the arbitrary depth limit that would have caused assertion
failures with degenerate (fully unbalanced) trees exceeding 256 nodes.

Affected functions: SubtreeQuery, SubtreeSegmentQuery, SubtreeRecycle,
MarkLeafQuery, MarkSubtree.

* Add BBTree stack overflow regression test

---------

Co-authored-by: Victor Blomqvist <>
* Guard docs deployment in forks

* Add Munk2D branding assets to docs and README

---------

Co-authored-by: Victor Blomqvist <>
* Guard docs deployment in forks

* Add Munk2D branding assets to docs and README

* Refine branding presentation in docs and README

* Fix Doxygen main page asset paths

---------

Co-authored-by: Victor Blomqvist <>
@viblo
viblo merged commit 039a80e into viblo:master Mar 23, 2026
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