Guard common and handwritten entrypoints through native cleanup and callback restoration. Add exclusion, recursive forwarding and exception-unwind probes; p2 adds its concurrent cross-wrapper regression with the port.
Co-Authored-By: GPT-6.1-Sol <noreply@openai.com>
125 shims carried private copies of the same small helpers (put_vec, st,
nl_status, Rd, dump_crv, read_nurb, ...). Move the most common, byte-identical
form of each into three headers grouped by the upstream API they need, and have
those shims pull them in with `using sc::<name>;`. Shims with a different
variant keep their own copy; files touched by open PRs are left alone.
`the_context()` stays per shim (its function-local SmContext must not be shared).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FBLgPenT24P1dunqnZR1Dj
SmAdvSurfaceIntersector: singular point classification (Dupin
indicatrices), MakeDupin, the interior-curve global solve
(SolveBranch/LocalSolve/FindBestSubdivisionNode/BranchIsGaussSeparate)
and FindInteriorCurves, with shim, ffi binding and difftest runner.
Base SmGlobalSolver::SolveBranch is now a free function callable from
overrides; surface p2 wires its two intersector stubs.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FsWWaoeGNWKgzeGrF2Pkn5
Alex Lytvynenko