Fix bug in iter::Chain::size_hint #63691
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r? @shepmaster (rust_highfive has picked a reviewer for you, use r? to override) |
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r? @scottmcm |
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Nice catch! @bors r+ rollup |
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📌 Commit ec54340 has been approved by |
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Centril
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…ttmcm Fix bug in iter::Chain::size_hint `Chain::size_hint` currently ignores `self.state`, which means that the size hints of the underlying iterators are always combined regardless of the iteration state. This, of course, should only happen when the state is `ChainState::Both`.
Centril
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…ttmcm Fix bug in iter::Chain::size_hint `Chain::size_hint` currently ignores `self.state`, which means that the size hints of the underlying iterators are always combined regardless of the iteration state. This, of course, should only happen when the state is `ChainState::Both`.
Centril
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Aug 20, 2019
…ttmcm Fix bug in iter::Chain::size_hint `Chain::size_hint` currently ignores `self.state`, which means that the size hints of the underlying iterators are always combined regardless of the iteration state. This, of course, should only happen when the state is `ChainState::Both`.
Centril
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Aug 20, 2019
…ttmcm Fix bug in iter::Chain::size_hint `Chain::size_hint` currently ignores `self.state`, which means that the size hints of the underlying iterators are always combined regardless of the iteration state. This, of course, should only happen when the state is `ChainState::Both`.
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Rollup of 7 pull requests Successful merges: - #63216 (avoid unnecessary reservations in std::io::Take::read_to_end) - #63265 (Implement `nth_back` for ChunksExactMut) - #63691 (Fix bug in iter::Chain::size_hint) - #63722 (Don't use stage naming in RUSTFLAGS environment variables) - #63723 (Consolidate sigemptyset workarounds) - #63736 (Restore the rustc_plugin crate in the sysroot) - #63743 (Allow git to merge `Cargo.lock`) Failed merges: r? @ghost
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Chain::size_hintcurrently ignoresself.state, which means that the size hints of the underlying iterators are always combined regardless of the iteration state. This, of course, should only happen when the state isChainState::Both.