rust/src/test/run-pass/expr-alt-generic-unique1.rs
2012-06-20 17:27:28 -07:00

17 lines
372 B
Rust

// -*- rust -*-
type compare<T> = fn@(~T, ~T) -> bool;
fn test_generic<T: copy>(expected: ~T, eq: compare<T>) {
let actual: ~T = alt check true { true { expected } };
assert (eq(expected, actual));
}
fn test_box() {
fn compare_box(b1: ~bool, b2: ~bool) -> bool { ret *b1 == *b2; }
test_generic::<bool>(~true, compare_box);
}
fn main() { test_box(); }