Case 0 and 1 of k_smallest and variants
#909
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The iterator can have side effects so I think it should be consumed in all cases, even k=0. If there are no side-effect then maybe the compiler will optimize it away.
Like with `tail(1)`, I think we should leverage a possible faster specialization.
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #909 +/- ##
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- Coverage 94.38% 94.29% -0.10%
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Files 48 48
Lines 6665 6815 +150
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+ Hits 6291 6426 +135
- Misses 374 389 +15 ☔ View full report in Codecov by Sentry. |
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Fixes #904.
About the case
k=0, I wonder if all our iterators behave well on iterators with side-effects. I think we should update the specialization tests.