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authorTyler Mandry <tmandry@gmail.com>2019-10-15 16:07:53 -0700
committerGitHub <noreply@github.com>2019-10-15 16:07:53 -0700
commitbbcf66a4a177c1756d5b6845933e6cb06aa21b2c (patch)
treee8afbeeb22cc0a0ddc3e088dadfd0aa5150d35e9 /src/libstd/sys/unix/stack_overflow.rs
parent820fb7ccbf2fa6116ce09a178b2deb9e9b736704 (diff)
parentc08a8713381ed67caea826a793145240cd873081 (diff)
downloadrust-bbcf66a4a177c1756d5b6845933e6cb06aa21b2c.tar.gz
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Rollup merge of #65389 - ecstatic-morse:zero-sized-array-no-drop, r=eddyb
Return `false` from `needs_drop` for all zero-sized arrays.

Resolves #65348.

This changes the result of the `needs_drop` query from `true` to `false` for types such as `[Box<i32>; 0]`. I believe this change to be sound because a zero-sized array can never actually hold a value. This is an elegant way of resolving #65348 and #64945, but obviously it has much broader implications.
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