From: Aristarkh A Zagorodnikov <xm@...3d.ru>
Date: 2001-09-08T18:38:55+09:00
Subject: [ruby-talk:20994] Bug in latest snapshot, regarding Float#to_s


		Hello!

	Recently I installed the latest snapshot (ruby 1.7.1 (2001-09-03)
[i686-linux]), and after some time of work found that it has a bug. After 2
hours of tracing the bug (all started from random Apache hangs), I traced it
down to Float#to_s and discovered that "ruby -e 'p 0.0'" puts computer in
and endless loop. The following patch to numeric.c (by no means said to be
100% correct or extensively tested) fixed the situation for me.

xm@is:~/build/ruby$ diff numeric.c numeric.c.orig
226,229c226
<     if ((d1 = modf(value, &d2)) == 0) {
<       fmt = "%.1f";
<     }
<     else if (value < 1.0e-3) {
---
>     if (value < 1.0e-3) {
240a238,240
>     else if ((d1 = modf(value, &d2)) == 0) {
>       fmt = "%.1f";
>     }

Aristarkh A Zagorodnikov, Lead Programmer, W3D Group
http://www.w3d.ru /// xm@w3d.ru /// ICQ UIN 36987938