Returns a named character vector mapping C type names to FFI type constructor calls. This is the single source of truth for type mappings used across all code generation functions (struct, union, typedef, function wrappers).
Details
Includes:
Standard C types (char, int, long, etc.)
Fixed-width types (int8_t, uint32_t, etc.)
POSIX types (size_t, ssize_t, off_t, pid_t, etc.)
glibc/musl internal types (__ssize_t, __pid_t, etc.)
macOS/Darwin types (__darwin_size_t, etc.)
BSD types (u_int32_t, register_t, etc.)
Windows/MSYS2/MinGW types (DWORD, HANDLE, __int64, etc.)
Clang/LLVM builtin types (SIZE_TYPE, etc.)