This PR fixes the behavior of `String.prev`, aligning the runtime implementation with the reference implementation. In particular, the following statements hold now: - `(s.prev p).byteIdx` is at least `p.byteIdx - 4` and at most `p.byteIdx - 1` - `s.prev 0 = 0` - `s.prev` is monotone Closes #9439 |
||
|---|---|---|
| .. | ||
| bench | ||
| compiler | ||
| elabissues | ||
| ir | ||
| lean | ||
| pkg | ||
| playground | ||
| plugin | ||
| simpperf | ||
| .gitignore | ||
| common.sh | ||
| lakefile.toml | ||
| lean-toolchain | ||