stillwater-sc / universal / 24087599404
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feat(tools): add standalone bisection CLI REPL (#701)

* feat(bisection): add standalone REPL for bisection coding framework

Add tools/bisection/ -- a focused interactive REPL that exposes the
bisection number system framework (Lindstrom, CoNGA'19) for design
exploration. Reuses tools/ucalc's TypeOps / Value / ExpressionEvaluator
machinery via header-only inclusion; ucalc itself is not touched.

Registered types per issue #691:
  bisection_unary{8,16}, bisection_fib{8,16}, bisection_posit{8,16},
  bisection_natposit{8,16}, bisection_elias{8,16}, bisection_golden{8,16}
plus posit{8,16,32} as a reference for side-by-side comparison.

Commands: type, types, show, compare, range, precision, bits,
numberline, sweep, heatmap, plus bare expressions evaluated in the
active type. CLI flags: -t, -f, --types, --help.

Wired through new CMake option UNIVERSAL_BUILD_TOOLS_BISECTION (also
enabled by UNIVERSAL_BUILD_DEMONSTRATION). Smoke tests cover --types,
show, compare, and range. Validated with both gcc and clang.

Relates to #687
Resolves #691

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(tools): address CodeRabbit review on bisection REPL

Three small fixes to tools/bisection/bisection.cpp from PR review:
- cmd_range: guard the dynamic-range log10 against zero minpos/maxpos
  to avoid division by zero, printing an explanatory message instead.
- cmd_numberline: drop the unused loop counter and its (void) cast.
- dispatch: factor a require_active() lambda so range/precision/bits/
  numberline emit a 'set a type first' hint instead of silently doing
  nothing when no active type has been selected.

Resolves CodeRabbit comments on PR #701.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

44783 of 53090 relevant lines covered (84.35%)

5517474.45 hits per line

Coverage Regressions

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Jobs
ID Job ID Ran Files Coverage
1 24087599404.1 633
84.35
 GitHub Action Run
Source Files on build 24087599404