rust/src/test/run-pass/expr-alt-generic-box1.rs
2011-08-16 15:05:57 -07:00

19 lines
390 B
Rust

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