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Masaki Hara (qnighy@qnmd.info)'s status on Saturday, 25-Aug-2018 14:52:34 JST Masaki Hara
- せのお (妹尾賢)
https://github.com/rust-lang/rust/issues/53639
static mutはその性質上unsafeな方法でしか利用できない。しかし比較的手の届きやすい位置に危険があるのでstatic mutを非推奨にしてはという意見が出てきた。staticとUnsafeCellを組み合わせることで同じことはできる
In conversation Saturday, 25-Aug-2018 14:52:34 JST from qnmd.info permalink
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  Consider removing UB-happy `static mut` in Rust 2018. · Issue #53639 · rust-lang/rust
  
  from GitHub
  
  static mut is almost impossible to use correctly, see rust-lang-nursery/lazy-static.rs#117 for an example in the widely-used lazy-static. You must be able to show that every borrow of the static mu...

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