src/test/run-pass/unique-copy-box.rs


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use std;
import sys::refcount;

fn main() unsafe {
    let i = ~@1;
    let j = ~@2;
    let rc1 = refcount(*i);
    let j = i;
    let rc2 = refcount(*i);
    #error("rc1: %u rc2: %u", rc1, rc2);
    assert rc1 + 1u == rc2;
}