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yaml --- r: 236107 b: refs/heads/stable c: 14bc454 h: refs/heads/master i: 236105: 3819075 236103: 8561b47 v: v3
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[refs]

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refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f
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refs/tags/homu-tmp: f859507de8c410b648d934d8f5ec1c52daac971d
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refs/tags/1.0.0-beta: 8cbb92b53468ee2b0c2d3eeb8567005953d40828
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refs/heads/stable: 06ded9c04e23ceaa41a4a5d01dd54432aaafd0db
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refs/heads/stable: 14bc45477085222dcf2b87bef75ca3e7d0b5274a
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refs/tags/1.0.0: 55bd4f8ff2b323f317ae89e254ce87162d52a375
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refs/tags/1.1.0: bc3c16f09287e5545c1d3f76b7abd54f2eca868b
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refs/tags/1.2.0: f557861f822c34f07270347b94b5280de20a597e

branches/stable/src/doc/tarpl/vec-into-iter.md

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}
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```
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One last subtle detail: if our Vec is empty, we want to produce an empty
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iterator. This will actually technically fall out doing the naive thing of:
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```text
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start = ptr
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end = ptr.offset(len)
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```
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However because `offset` is marked as a GEP inbounds instruction, this will tell
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LLVM that ptr is allocated and won't alias other allocated memory. This is fine
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for zero-sized types, as they can't alias anything. However if we're using
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`heap::EMPTY` as a sentinel for a non-allocation for a *non-zero-sized* type,
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this can cause Undefined Behaviour. Alas, we must therefore special case either
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cap or len being 0 to not do the offset.
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So this is what we end up with for initialization:
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And this is what we end up with for initialization:
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```rust,ignore
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impl<T> Vec<T> {

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