Reimplement `carrying_add` and `borrowing_sub` for signed integers. As per the discussion in #85532, this PR reimplements `carrying_add` and `borrowing_sub` for signed integers. It also adds unit tests for both unsigned and signed integers, emphasing on the behaviours of the methods. |
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| benches | ||
| primitive_docs | ||
| src | ||
| tests | ||
| Cargo.toml | ||