Add #[must_use] to remaining std functions (O-Z) #90431
Merged
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I've run out of compelling reasons to group functions together across crates so I'm just going to go module-by-module. This is half of the remaining items from the
std
crate, from O-Z.panicking::take_hook
has a side effect: it unregisters the current panic hook, returning it. I almost ignored it, but the documentation example showslet _ = panic::take_hook();
, so following suit I went ahead and added a#[must_use]
.I added these functions that clippy did not flag:
Parent issue: #89692
r? @joshtriplett