rust/tests/ui/issues/issue-23024.rs
2023-01-11 09:32:08 +00:00

13 lines
370 B
Rust

use std::any::Any;
fn main()
{
fn h(x:i32) -> i32 {3*x}
let mut vfnfer:Vec<Box<dyn Any>> = vec![];
vfnfer.push(Box::new(h));
println!("{:?}",(vfnfer[0] as dyn Fn)(3));
//~^ ERROR the precise format of `Fn`-family traits'
//~| ERROR missing generics for trait `Fn`
//~| ERROR the value of the associated type `Output` (from trait `FnOnce`)
}