Function expr_batch_get_result 

#[unsafe(no_mangle)]
pub extern "C" fn expr_batch_get_result(
    batch: *const ExprBatch,
    index: usize,
) -> Real

Get the result of an expression

Parameters

• batch: The batch
• index: Expression index from expr_batch_add_expression()

Returns

Result value, or NaN if index is invalid