Graduates the integer FORMAT side to verbatim Hare ports, completing the
round-trip whose parse half landed in fold-1, and adds the machine-word
entry points.
- u64tos: ref/hare/strconv/utos.ha:10-42. Replaces the pre-graduation
basedigit() helper with Hare's rune LUT (lut_upper/lut_lower), single
static buffer + bytes.reverse, and strings.frombytes for the
`*(&s: *str)` reinterpret (rule-9 carve-out; ww's lib/types has no
`string` struct). basedigit deleted (now dead).
- i64tos: ref/hare/strconv/itos.ha:10-32. Now `if (i >= 0) u64tos(i)`
else negate-and-prefix via `u64tos((-i): u64)`. This fixes the
i64tos-on-I64_MIN bug (cgen.ww #144): the old `n = -n; for (n > 0)`
left n at the I64_MIN bit pattern (still negative), emitting just
"-". The `(-i): u64` two's-complement reinterpret yields the true
magnitude 9223372036854775808.
- itos/utos/ztos/uptrtos: int/uint/size/uintptr 8B machine-word
wrappers (itos.ha:52, utos.ha:62/67/72), parallel to fold-1's
stoi/stou/stoz. The existing iN/uN width wrappers are unchanged.
Divergences documented at-site: no static assert; LUT-select + base
normalize via the existing basenum() (ww has no if-expression); explicit
copy loop for Hare's slice-assign.
Probes (drew PROBE-BEFORE-COMMIT, all green on BOTH stages):
- i64tos(I64_MIN) == "-9223372036854775808": cstage `ww run` exit 0 +
wwstage-compiled binary exit 0; cs==ww .s byte-identical on the real
combined (30190 lines).
- static `[0...]` fill + rune LUT static-init emit byte-identically
cross-stage (isolated smoke probe + the combined byte-id).
- frombytes (not a types::string mirror) per rule 9.
Tests: extend inttest.ww with test_u64tos[_bases] / test_i64tos[_bases]
(verbatim utos.ha:74-103 / itos.ha:54-87, flat assert sequences;
feedback_test_match_hare_source) + test_word_wrappers. I64_MIN inputs
spelled -I64_MAX-1 (proj #245: wwstage mis-lexes the 2^63 literal).
combined.ww regen: strconv is compiler-imported via fmt, so w6c +
wwdump main.combined.ww + smoke.combined.ww are regenerated.
Hojun-Cho
db5c5b6149