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* numeric.c (ruby_float_step): Avoid error on i386 and amd64.

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Patch by Vit Ondruch. Issue #4576 [rubyspec:a9525edcd]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33285 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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marcandre 2011-09-16 06:44:59 +00:00
parent 23d472165f
commit fd47fed269
2 changed files with 8 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Sep 16 02:05:44 2011 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* numeric.c (ruby_float_step): Avoid error on i386 and amd64.
Patch by Vit Ondruch. Issue #4576.
Thu Sep 15 11:39:43 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* gc.c (mark_entry, mark_key, mark_keyvalue): adjust callback

4
numeric.c
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@ -1683,6 +1683,7 @@ ruby_float_step(VALUE from, VALUE to, VALUE step, int excl)
double unit = NUM2DBL(step);
double n = (end - beg)/unit;
double err = (fabs(beg) + fabs(end) + fabs(end-beg)) / fabs(unit) * epsilon;
double im = 0.0;
long i;
if (isinf(unit)) {
@ -1691,7 +1692,8 @@ ruby_float_step(VALUE from, VALUE to, VALUE step, int excl)
else {
if (err>0.5) err=0.5;
n = floor(n + err);
if (!excl || ((long)n)*unit+beg < end) n++;
im = ((long)n)*unit+beg;
if (!excl || im < end) n++;
for (i=0; i<n; i++) {
rb_yield(DBL2NUM(i*unit+beg));
}