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add shrink_to_fit method to vectors #4960

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thestinger opened this issue Feb 15, 2013 · 2 comments
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add shrink_to_fit method to vectors #4960

thestinger opened this issue Feb 15, 2013 · 2 comments
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C-enhancement Category: An issue proposing an enhancement or a PR with one. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

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@thestinger
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This is useful for minimizing memory usage of a long-lived container after deletions, and was added to std::vector in C++11.
@ghost ghost assigned thestinger Mar 9, 2013
@thestinger thestinger mentioned this issue Jun 2, 2013
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@thestinger
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Triage visit, this is still unimplemented.

@thestinger
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It's probably a bad idea to implement this for hash tables because it can significantly degrade search performance.

@thestinger thestinger removed their assignment Jun 16, 2014
bors added a commit to rust-lang-ci/rust that referenced this issue May 2, 2020
@bors
Auto merge of rust-lang#4960 - ThibsG:patterns_with_wildcard_#4640, r…
ac795a6 
…=flip1995

New lint: pats_with_wild_match_arm

Wildcard use with other pattern in same match arm.

The wildcard covers other(s) pattern(s) as it will match anyway.

changelog: add new lint when multiple patterns (including wildcard) are used in a match arm.

Fixes rust-lang#4640.
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C-enhancement Category: An issue proposing an enhancement or a PR with one. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
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