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R_ProtectWithIndex_unchecked

miniextendr_api::ffi

Function R_ProtectWithIndex_unchecked 

Source 
pub unsafe extern "C-unwind" fn R_ProtectWithIndex_unchecked(
    s: SEXP,
    index: *mut c_int,
)
Expand description

Protect a SEXP and record its stack index for later R_Reprotect.

Cost: O(1) — same array write as Rf_protect, plus stores the index. No allocation. Use when you need to replace a protected value in-place (e.g., inside a loop that allocates) without unprotect/re-protect churn. Unchecked FFI binding for R_ProtectWithIndex. Generated from source location line 3851, column 12. Generated from source file miniextendr-api/src/ffi.rs.