From 4a574f7ad985d7e5d1d1596b7632e4db8620e65b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 23 May 2016 03:30:30 +0000
Subject: bigdecimal.c: fix FloatDomainError

* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): consider
  non-finite float values not to raise FloatDomainError.
  [ruby-core:75682] [Bug #12414]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55123 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/bigdecimal/bigdecimal.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'ext/bigdecimal/bigdecimal.c')

diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 9125e6b585..3ccad9a508 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -239,6 +239,12 @@ again:
 	if (prec < 0) goto unable_to_coerce_without_prec;
 	if (prec > DBL_DIG+1) goto SomeOneMayDoIt;
 	d = RFLOAT_VALUE(v);
+	if (!isfinite(d)) {
+	    pv = VpCreateRbObject(prec, NULL);
+	    pv->sign = isnan(d) ? VP_SIGN_NaN :
+		d > 0 ? VP_SIGN_POSITIVE_INFINITE : VP_SIGN_NEGATIVE_FINITE;
+	    return pv;
+	}
 	if (d != 0.0) {
 	    v = rb_funcall(v, id_to_r, 0);
 	    goto again;
-- 
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