From 79c70445820ff72bfa1e2f4b0d4c1cc73e5fb510 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 4 Jun 2004 09:56:25 +0000
Subject: * io.c (rb_io_gets_m): set lastline ($_) even when read line is  
 nil.  [ruby-dev:23663]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 bignum.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'bignum.c')

diff --git a/bignum.c b/bignum.c
index 92384bf8e3..35b79d8877 100644
--- a/bignum.c
+++ b/bignum.c
@@ -966,10 +966,11 @@ rb_big_eq(x, y)
 	break;
       case T_FLOAT:
         {
-	    double a, b;
+	    volatile double a, b;
 
 	    a = RFLOAT(y)->value;
 	    b = rb_big2dbl(x);
+	    if (isnan(a) || isnan(b)) return Qfalse;
 	    return (a == b)?Qtrue:Qfalse;
 	}
       default:
-- 
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