Function map_aggregate_real32 

#[unsafe(no_mangle)]
pub extern "C" fn map_aggregate_real32(
    vector: &VecBuf,
    map: extern "C" fn(f32, usize) -> *const c_void,
    aggregate: extern "C" fn(*const c_void, *const c_void) -> *const c_void,
) -> ScalarInteropResult<*const c_void>

Warning: This function interface heavily works around the Rust type system and the safety it provides. Use with great care!