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min("cab") / max("cab") do not compile

print(max("cab"))     # CPython: c



error: no matching overload
    max(Variant, Variant)
    max(Int64, Int64)
    max(Double, Double)
    max(class)

min/max accept a list (the max(class) overload is TPyList) and two scalars, but not a string — and by extension not any other iterable that is not a TPyList. In CPython min/max take any iterable, so a dict (iterating keys), a set and a generator are all in scope for the same gap.

A compile error, so it is a gap rather than a silent wrong answer — filed as a feature, not a bug. Found by the builtin × argument-type sweep against CPython.

FIXED (this session)

Added max(const s: AnsiString): AnsiString / min(const s: AnsiString): AnsiString overloads to pylib.pas — byte-ordinal comparison, consistent with this frontend's byte-string model. Checked dict and set (mentioned in the ticket as "same gap"): both ALREADY worked before this fix — a dict iterates its keys and a set is represented as a TPyList, so both already hit the existing max(l: TPyList) overload. Only the bare-string case was actually missing. Verified str/list/dict/set all match CPython.

Gate

make test-nilpy + self-host byte-identical, plus min/max over str, list, dict and set diffed against CPython.

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