// Rejection counterpart to 0040: a value-position block whose last expression's // value is discarded by a trailing `;` produces no value. A `-> T` function // whose body ends that way is a compile error (it used to silently return a // zero default). Drop the `;` to return the value, or use an explicit `return`. #import "modules/std.sx"; // `n * 2;` discards the value → the function returns nothing. double :: (n: i32) -> i32 { n * 2; } main :: () -> i32 { double(5) }