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Document how the "_" pattern works #31154

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Document how the "_" pattern works#31154

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@hanna-kruppe
hanna-kruppe
opened on Jan 24, 2016

#31153 was closed and the user who filed it was educated, but they're not the first and not the last person to be confused by this. AFAIK the behavior of _ — especially how it's different from _foo — is not documented, at least I couldn't find anything in the reference and it seems a tad obscure to be mentioned in the book.

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  1. huonw
    added
    A-docs
    on Jan 24, 2016

  2. durka commented on Jan 26, 2016

    @durka
    durka
    on Jan 26, 2016
    Contributor

    Well it is covered here (and linked from the Syntax Index) but it doesn't explain the behavior discussed in #31153.

  3. steveklabnik
    added a commit that references this issue on Feb 1, 2016

    Explain behavior of _

    dc3a39d
  4. Manishearth
    added a commit that references this issue on Feb 2, 2016

    Rollup merge of rust-lang#31352 - steveklabnik:gh31154, r=nikomatsakis

    8665021
  5. bors
    closed this as completedin #31352on Feb 3, 2016
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