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* histogram: Simplify iterators We don't really need currLower and currUpper and can calculate it when needed (as already done for the floatBucketIterator). The calculation is cheap, while keeping those extra variables around costs RAM (potentially a lot with many iterators). * histogram: Convert Bucket/FloatBucket to one generic type * histogram: Move some bucket iterator code into generic base iterator * histogram: Remove cumulative iterator for FloatHistogram We added it in the past for completeness (Histogram has one), but it has never been used. Plus, even the cumulative iterator for Histogram is only there for test reasons. We can always add it back, and then maybe even using generics. Signed-off-by: beorn7 <beorn@grafana.com> |
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