Hojun-Cho 0e66073e32 lib/strconv: f64tos Ryū shortest float→string (#106 fold-5a) ...

Graduate f64tos from the lossy fixed-point placeholder to Ryū shortest-
round-trippable (ftos.ha:432 + ftos_ryu.ha). f64tos(n:f64) str, G-format
(void/NONE) — the faithful documented subset (full parametric fftosf is
dead code for G/void/NONE → deferred #64). Ryū core decomposed: struct-
RETURN + scalar params (Hare's r128 idiom; avoids tuple-ABI #163-166).
f64 powers tables [15][2]/[13][2]u64 (2D #156). Zero float literals.
Both E+F encode paths reachable+tested, no dead code.

Graduation (lib-note "don't keep both"): old lossy f64tos deleted; fmt
fprintf_f64_huge "huge"→"9.5e18" (improvement). 5 value-faithful filed-
bug dodges (byte-id, documented): #167/#169/#170/#43/#144. Test 908.
Make test 186/186 incl 990-997 byte-id + combined_ww_fresh.

Drew's strconv 5-fold plan — primary completion (f64tos). f32tos coda
#67 (behind #143); parametric ftosf #64.

2026-05-27 15:39:03 +09:00

..

w6a

w6a, wcc: add A_SARQ for signed arithmetic right-shift (#136)

2026-05-27 01:29:24 +09:00

w6c

lib/strconv: f64tos Ryū shortest float→string (#106 fold-5a)

2026-05-27 15:39:03 +09:00

w6l

types: add INT/UINT limit constants, derived from size(int) (#114)

2026-05-26 08:31:41 +09:00

wcc

wcc: tagged float-variant return packs float bits via X0-spill (#157)

2026-05-27 13:04:02 +09:00

ww

cmd/ww: drop duplicate PATH_MAX def; use os.PATH_MAX

2026-05-27 01:16:16 +09:00

wwdump

lib/strconv: f64tos Ryū shortest float→string (#106 fold-5a)

2026-05-27 15:39:03 +09:00