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
The problem data (SmSurfacePointSolver), the global solver's helpers
(closure cache, objective, control-net triangle and leg guesses, seam,
stride, extremum and boundary tests) and the local stepper's pieces
(construction, copies, lazy evaluation, clamping, boundary hits, bounds
check, iso-curve drop) of SmSurfacePointSolve.cpp, with the static
control-net helpers.
The shim compiles the upstream file itself (its classes are file-local),
renaming the classes and SmSurface's two point-solve members.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BY8UpXKuMci15rAWGXsbsm
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