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math.c (ruby_lgamma_r): reduce duplicate code

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2017-05-10 00:20:02 +00:00
parent 6ad7c53ba9
commit 7573452099
1 changed files with 2 additions and 5 deletions
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7
math.c
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@ -800,11 +800,8 @@ ruby_lgamma_r(const double d, int *sign)
{
const double g = lgamma_r(d, sign);
if (isinf(g)) {
if (d == 0.0 && signbit(d)) {
*sign = -1;
return INFINITY;
} else if (d == 0.0 && !signbit(d)) {
*sign = 1;
if (d == 0.0) {
*sign = signbit(d) ? -1 : +1;
return INFINITY;
}
}