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numeric.c: round as double

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* numeric.c (flo_round): compare as double, not long double with
  i387.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55612 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-07-08 05:38:16 +00:00
parent 286eec2646
commit 558b9d05b2
1 changed files with 2 additions and 2 deletions
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4
numeric.c
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@ -2007,10 +2007,10 @@ flo_round(int argc, VALUE *argv, VALUE num)
f = pow(10, ndigits);
x = round(number * f);
if (x > 0) {
if ((x + 0.5) / f <= number) x += 1;
if ((double)((x + 0.5) / f) <= number) x += 1;
}
else {
if ((x - 0.5) / f >= number) x -= 1;
if ((double)((x - 0.5) / f) >= number) x -= 1;
}
return DBL2NUM(x / f);
}