Debug Code and Resolve Existing Problems #107
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The encoder's flush function was using an incorrect condition for determining which final bit to emit. After normalization, the range [low, high] straddles the midpoint, so the flush logic should check if low < half() to decide whether to emit 0 or 1. Previously used: low <= quarter() Corrected to: low < half() This aligns with standard arithmetic coding flush logic and ensures correct encoding of the final bits. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
The previous commit incorrectly changed the condition to use half() instead of quarter(). The actual bug was the comparison operator. After the E2/E3 normalization loop exits, we know: - low < quarter OR high >= three_quarter When low == quarter exactly, we must have high >= three_quarter (otherwise the loop would continue). This places us in the upper region, so we should emit 1, not 0. The fix: change <= to < to properly handle the boundary case. Before: if self.state.low <= self.state.quarter() After: if self.state.low < self.state.quarter() This reverts the half() change and fixes the actual comparison bug. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #107 +/- ##
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Coverage 75.69% 75.69%
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Files 11 11
Lines 572 572
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Hits 433 433
Misses 139 139 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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The encoder's flush function was using an incorrect condition for determining which final bit to emit. After normalization, the range [low, high] straddles the midpoint, so the flush logic should check if low < half() to decide whether to emit 0 or 1.
Previously used: low <= quarter()
Corrected to: low < half()
This aligns with standard arithmetic coding flush logic and ensures correct encoding of the final bits.
🤖 Generated with Claude Code