|  | struct X {} | 
|  |  | 
|  | fn two_args(_a: i32, _b: f32) {} | 
|  | fn three_args(_a: i32, _b: f32, _c: &str) {} | 
|  | fn four_args(_a: i32, _b: f32, _c: &str, _d: X) {} | 
|  |  | 
|  | fn main() { | 
|  | two_args(1.0, 1); //~ ERROR arguments to this function are incorrect | 
|  | three_args(1.0,   1,  ""); //~ ERROR arguments to this function are incorrect | 
|  | three_args(  1,  "", 1.0); //~ ERROR arguments to this function are incorrect | 
|  | three_args( "", 1.0,   1); //~ ERROR arguments to this function are incorrect | 
|  |  | 
|  | four_args(1.0, 1, X {}, ""); //~ ERROR arguments to this function are incorrect | 
|  | } |