fn roundParam(a: usize, b: usize, c: usize, d: usize, x: usize, y: usize) RoundParam
fn roundParam(a: usize, b: usize, c: usize, d: usize, x: usize, y: usize) RoundParam { return RoundParam{ .a = a, .b = b, .c = c, .d = d, .x = x, .y = y, }; }