31 lines
490 B
Rust
31 lines
490 B
Rust
// run-pass
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use std::cell::Cell;
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#[derive(Debug)]
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struct B<'a> {
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a: [Cell<Option<&'a B<'a>>>; 2]
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}
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impl<'a> B<'a> {
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fn new() -> B<'a> {
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B { a: [Cell::new(None), Cell::new(None)] }
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}
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}
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fn f() {
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let (b1, b2, b3);
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b1 = B::new();
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b2 = B::new();
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b3 = B::new();
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b1.a[0].set(Some(&b2));
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b1.a[1].set(Some(&b3));
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b2.a[0].set(Some(&b2));
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b2.a[1].set(Some(&b3));
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b3.a[0].set(Some(&b1));
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b3.a[1].set(Some(&b2));
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}
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fn main() {
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f();
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}
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