cycle collection crash

tag maybe_pointy {
    no_pointy;
    yes_pointy(@pointy);
}

type pointy = {
    mutable x : maybe_pointy
};

iter allunder(n: uint) -> uint {
    let i: uint = 0u;
    while i < n { put i; i += 1u; }
}

fn main()
{
    const max : uint = 10u;

    let v : [mutable @pointy] = [mutable];
    for each i in allunder(max) {
        v += [mutable @{ mutable x : no_pointy }];
    }

    v[0].x = yes_pointy(v[1]);
    v[1].x = yes_pointy(v[0]);

    for each i in allunder(max) {
        v[i] = @{ mutable x : no_pointy };
    }
}

Crashes 90% of the time.

Sorry, this only crashes (90% of the time) with RUST_CC_ZEAL.

Assigning to myself so I can try to reproduce.

@jruderman

I'm closing because the example code no longer works (iter is no longer a thing). @jruderman , if you can reproduce with a current example, feel free to reopen or file a new bug.

An updated version of this testcase passes, even with RUST_CC_ZEAL :)

enum maybe_pointy {
    no_pointy,
    yes_pointy(@pointy)
}

type pointy = {
    mutable x : maybe_pointy
};

fn main()
{
    const max : uint = 10u;

    let v : [mutable @pointy] = [mutable];
    uint::range(0u, max) {|_i|
        v += [mutable @{ mutable x : no_pointy }];
    }

    v[0].x = yes_pointy(v[1]);
    v[1].x = yes_pointy(v[0]);

    uint::range(0u, max) {|i|
        v[i] = @{ mutable x : no_pointy };
    }
}

Merge pull request rust-lang#982 from bjorn3/backtrace_support

Change overwritten map to index on opnum not argument (rust-lang#982)

avx512vnni (rust-lang#982)

Merge rust-lang#982

Auto merge of rust-lang#982 - RalfJung:rustup, r=RalfJung

Merge pull request rust-lang#982 from rust-lang/sync_from_rust_2026_0…

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cycle collection crash #982

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jruderman commented on Sep 27, 2011

catamorphism commented on Mar 15, 2012

catamorphism commented on Mar 15, 2012

jruderman commented on Mar 15, 2012

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