strconv: reject overflow before arithmetic

2026-08-09 17:50:47 +09:00
parent 8e2e6ae162
commit 976dc8a813
6 changed files with 118 additions and 19 deletions
--- a/lib/strconv/ftos.ww
+++ b/lib/strconv/ftos.ww
@@ -54,7 +54,6 @@
 package strconv;

 import math;
-import os;

 // ref/hare/strconv/ftos_ryu.ha:33. (hi:lo) >> s, low 64 bits. Hare's
 // "TODO: use 128-bit integers" — ww has no u128; pure-u64 decomposition.