Fix `pad_using` bug producing items when it shouldn't#1079

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Takashiidobe wants to merge 6 commits intorust-itertools:masterfrom

Takashiidobe:takashiidobe/pad-using-bug

Commits on Dec 5, 2025

add double ended iterator tests that make sure using next back after next is correct. Also fix pad_using bug where calling next_back after next would still produce items when it shouldn't
Takashiidobe
committed
code review feedback: try to remove saturating_ ops from next_back
Takashiidobe
committed
refactor most implementations of pad_tail to remove saturating ops + clean up rfold
Takashiidobe
committed

Commits on Dec 6, 2025

Commits on Dec 13, 2025

code review feedback + remove fold + rfold implementations cause we shouldn't need them
Takashiidobe
committed