rust/tests/ui/expr-block-generic-unique1.rs
2023-01-11 09:32:08 +00:00

19 lines
479 B
Rust

// run-pass
#![allow(unused_braces)]
fn test_generic<T, F>(expected: Box<T>, eq: F) where T: Clone, F: FnOnce(Box<T>, Box<T>) -> bool {
let actual: Box<T> = { expected.clone() };
assert!(eq(expected, actual));
}
fn test_box() {
fn compare_box(b1: Box<bool>, b2: Box<bool>) -> bool {
println!("{}", *b1);
println!("{}", *b2);
return *b1 == *b2;
}
test_generic::<bool, _>(Box::new(true), compare_box);
}
pub fn main() { test_box(); }