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Document how the "_" pattern works #31154

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hanna-kruppe opened this issue Jan 24, 2016 · 1 comment
Closed

Document how the "_" pattern works #31154

hanna-kruppe opened this issue Jan 24, 2016 · 1 comment

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@hanna-kruppe
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#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.
@huonw huonw added the A-docs label Jan 24, 2016
@durka
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durka commented Jan 26, 2016

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

steveklabnik added a commit to steveklabnik/rust that referenced this issue Feb 1, 2016
@steveklabnik
Explain behavior of _
dc3a39d 
Fixes rust-lang#31154
@steveklabnik steveklabnik mentioned this issue Feb 1, 2016
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Manishearth added a commit to Manishearth/rust that referenced this issue Feb 2, 2016
@Manishearth
Rollup merge of rust-lang#31352 - steveklabnik:gh31154, r=nikomatsakis
8665021 
Fixes rust-lang#31154
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@durka @huonw @hanna-kruppe