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    ドッグ (linda_pp@mstdn.jp)'s status on Wednesday, 05-Apr-2023 22:45:12 JSTドッグドッグ

    浮動小数点数の演算の const fn 化がちょっと話題になってるけど，コンパイル時と実行時で挙動が変わってしまうと unsound だから難しそう（gcc はビルド対象の挙動をコンパイル時にエミュレートして頑張ってる） https://github.com/rust-lang/rust/issues/57241

    In conversationWednesday, 05-Apr-2023 22:45:12 JST from mstdn.jppermalink

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      Tracking issue for `#![feature(const_fn_floating_point_arithmetic)]` · Issue #57241 · rust-lang/rust
      Sub-tracking issue for rust-lang/rfcs#911. This tracks arithmetic for floating point types in const fn. These operations are already stable in const/static, and are also being promoted on stable (&...
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