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| author | bors <bors@rust-lang.org> | 2016-11-22 03:29:46 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-11-22 03:29:46 -0600 |
| commit | 0f7c75b74fb7adc436eedc66c0032879293eeac6 (patch) | |
| tree | 2b34cfc1fa6076cbe90a38091e4ba478f92117d2 /src/liballoc_system | |
| parent | 1c11ea3aedebac562f5125e1cf22ac56a3a8993c (diff) | |
| parent | 6c2a456bf198e7853f570435fc78bbd99c51b9d6 (diff) | |
| download | rust-0f7c75b74fb7adc436eedc66c0032879293eeac6.tar.gz rust-0f7c75b74fb7adc436eedc66c0032879293eeac6.zip | |
Auto merge of #37834 - bluss:peek-none, r=BurntSushi
Make Peekable remember peeking a None Peekable should remember if a None has been seen in the `.peek()` method. It ensures that `.peek(); .peek();` or `.peek(); .next();` only advances the underlying iterator at most once. This does not by itself make the iterator fused. Thanks to @s3bk for the code in `fn peek()` itself. Fixes #37784
Diffstat (limited to 'src/liballoc_system')
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