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Conditions under which some slice methods return None seem undocumented #40435

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8573 opened this issue Mar 11, 2017 · 0 comments
Closed

Conditions under which some slice methods return None seem undocumented #40435

8573 opened this issue Mar 11, 2017 · 0 comments
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A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools

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@8573
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8573 commented Mar 11, 2017

Some methods of slices, including split_first, split_first_mut,
split_last, and split_last_mut return Option types without
documenting the conditions under which they return Some vs None; I
would like to suggest that these conditions be documented.
@steveklabnik steveklabnik added the A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools label Mar 11, 2017
frewsxcv added a commit to frewsxcv/rust that referenced this issue Mar 19, 2017
@frewsxcv
Rollup merge of rust-lang#40646 - russmack:issue-40435-mention-none, …
35cf2f9 
…r=frewsxcv

Add mention of None as possible return. Closes rust-lang#40435.

This commit adds a small mention to some methods that None is returned when the slice is empty.
@bors bors closed this as completed in b77d31a Mar 19, 2017
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@steveklabnik @sfackler @8573