tcc_union: Declare union for FFI helper generation

In Rtinycc: Builds the 'TinyCC' Command-Line Interface and Library for 'C' Scripting in 'R'

Declare union for FFI helper generation

Description

Generate R-callable helpers for union allocation and member access. The union must be defined in a header.

Usage

tcc_union(ffi, name, members, active = NULL)

Arguments

ffi	A tcc_ffi object
name	Union name (as defined in C header)
members	Named list of union members with FFI types
active	Default active member for accessors

Value

Updated tcc_ffi object

Examples

## Not run: 
ffi <- tcc_ffi() |>
  tcc_union("data_variant",
    members = list(as_int = "i32", as_float = "f32"),
    active = "as_int"
  )

## End(Not run)

Rtinycc documentation built on April 28, 2026, 1:07 a.m.