Module large_integers 

Large integer types → REALSXP (f64).

R doesn’t have native 64-bit integers. These types convert to f64 (REALSXP) which may lose precision for values outside the “safe integer” range.

Macros

impl_logical_into_r 🔒

Macro for logical IntoR via Rf_ScalarLogical with conversion to i32.

impl_option_coerce_into_r 🔒

Macro for Option<T> where T coerces to a type with existing Option impl.

impl_option_smart_i64_into_r 🔒

Macro for NA-aware Option<T> → R smart scalar conversion. Checks if value fits i32 → INTSXP with NA_INTEGER for None, otherwise REALSXP with NA_REAL for None.

Functions

str_to_charsxp 🔒

Helper to convert a string slice to R CHARSXP. Uses UTF-8 encoding. Empty strings return R_BlankString (static, no allocation).

str_to_charsxp_unchecked 🔒 ^⚠

Unchecked version of str_to_charsxp.