From: ts <decoux@...>
Date: 2001-08-30T15:40:11+09:00
Subject: [ruby-talk:20566] Re: Problem with float numbers

>>>>> "Y" == Yukihiro Matsumoto <matz@ruby-lang.org> writes:

Y> Hi,
Y> In message "[ruby-talk:20531] Re: Problem with float numbers"
Y>     on 01/08/29, Erik B�gfors <erik@bagfors.nu> writes:

Y> |I think you are correct
Y> |#[Wed Aug 29 16:36:38]:~
Y> |: [bagfors@detrius]$ ; LC_ALL=sv_SE ruby test.rb 
Y> |5,2.0

Y> |but where does the extra .0 come from???

Y> I don't know.  Maybe a bug in Ruby.  I hope not.

 It came from here (flo_to_s). rb_f_puts is called will a Float and
 sprintf("%-.10g") return "5,2"

222         if (strchr(s, '.') == 0) {
223             int len = strlen(buf);
224             char *ind = strchr(buf, 'e');
225
226             if (ind) {
227                 memmove(ind+2, ind, len-(ind-buf)+1);
228                 ind[0] = '.';
229                 ind[1] = '0';
230             } else {
231                 strcat(buf, ".0");
232             }
233         }

 s contains "5,2" in this case



Guy Decoux